I agree.It is the parents responsibility to restrict access to all gambling websites in all of the desktops,laptops,phone and tablets in their respective families.We have to do this because some kids are smarter than the average and they can have bitcoins which easily bypasses the age limit.Gambling if learnt in a young age I am afraid it won’t have any remedy if someone become addicted.
Of course, parents are responsible how their children act at internet and what sites they have access to. It's their obligation to try to protect their children from harmful content at the internet and gambling is one of them. Children and minors can't act responsible when it comes to such addictive content that also includes money and that might grow into serious problem for any family. I think that most countries have laws that forbid or limit access of children and minors to.such content.