Perhaps, there is no hard in educating our kids if we care about their future. Indeed, it is the responsibility of the parents and it is their duty for their kids not to fall into gambling addiction. If they let this happen and reconsider them because they are just a kid and do not yet know that was wrong, it is the same as teaching them to commit more mistakes. And that is not an act of being responsible parents nor an act of teaching them to be a good parent in the future. It should not be tolerated or else, it will put into their mind that it is okay to do it again.
There should be no difficulty in educating their children but we know that the era is changed and many things also changed which make parents needs to adjust their way to educate their kids. The responsibiliti of the parents become hard especially if their kids familiar using internet which many parents now is hard to adapt to more advanced technology. They let their kids use the internet free and will become a problem for their kids because their parents not guiding them while using their devices. Parents can't teach their kids because parents needs to learn many things to understand what they want to tell to their kids. If their parents can supervise their children and provide good education, their children will not do things that could have a bad impact on their children.
Though polite, your approach lacks human complexity. Just words of right and wrong won't shape kids. Individuals want boundaries and independence. Communication is important, but so is knowing that each child sees the world differently. Teaching accountability relies on discipline, not punishment. Large differences exist between the two. Punishment responds; discipline teaches. Are we to support them? Absolutely. Also, we must prepare kids for the fact that the world won't always be kind. They need resilience, not reminders
And parent-child friendship? A wonderful ambition, but friendship and parenthood aren't always compatible. Our responsibility is direction, safety, and sometimes being the figure they despise, only to realize our lessons as they grow
We need to use different approach for our kids because of everything is change and they will confuse to understand what we want. We want to give something that can protect them from doing bad things but we can't explain it to them and that can make misunderstanding between us. We must support them as they are our kids but we also needs to adapt the situation around us so we can teach many things to them and they can understand it better.
Parent-child friendship is a good idea that can implemented by parents so they can getting close to their kids. If their kids realize that their parents is always besides them, no matter how busy their parents, their kids will not search for the other people to get the lesson. Kids will see that they can ask all things to their parents and will consider that their parents is their hero.
As difficult as it is in terms of educating children, it is still the obligation and full responsibility of both parents regardless of the situation and no matter how bad your child's personality is, basically there are children who are easy to advise and there are children who are stubborn and cannot be directed, I understand this matter but for this problem I think parents are fully familiar with the personality of their children and I am sure that parents will definitely have the right formula to overcome problems like this with the aim of changing and directing them in a better direction.
If indeed they can still be advised slowly then maybe it's not too difficult but there are also children who are very hard to and that means you need firmness in terms of advising them and also like you said that there must be actions taken by parents at least to bully them and maybe with some other punishments that can make them deterrent and promise to change. I understand that a stubborn and sensitive child may rebel but isn't this an effective way to do it if basically the advice slowly and gently still cannot traumatize them? Sure, but on the other hand I don't think it will be that difficult and complicated to direct a child who is still underage because they are still living with their parents or meaning that they are still dependent on their parents so there are many situations together that have the potential to facilitate and accelerate the process of changing a child.
That is why parents needs learn many things to educate children, especially with the emerging of the technology that make children knows many things from the internet. Parents that can't adapt the technology will feel difficult to educate their children because their children smarter than them and don't want to listen their parents. It is why parents need to be close to their children so their children can be easy to advise and not just push their children to become what their parents want. This is what I see from some parents to their children but their children can't accept it and become rebel.
Parents need to use different things to close to them and realize that their children is not the same as the other children. One child will be different with the other child so parents need to use different approaches to know what their children want. Yes, parents can give punishment to their children but don't get wrong because this punishment is just make them realize what their mistake and parents needs to explain to them and show the mistake and how they can fix the mistake. That will not give traumatic experience to their children because parents can explain with softly and their reason to do that is for their children's good. Sooner or later, their children will realize what their parents wants and will follow it without any objection.