Basically, never gamble at home, as much as possible choose another place to do it even though it is based on online gambling. Delete your browsing history when you visit any website related to gambling, because it could be that without our knowledge, children like to explore our cellphones. The impact of gambling in front of children is quite large, they will tend to no longer respect you if they understand that gambling is a bad thing, and will also follow in your footsteps if they are curious about the games you play.
In my opinion, these two things include other impacts, in the long term, gambling in front of children makes them trapped in a period of Inferiority Complex (feeling inferior), because they have parents who behave badly. Therefore, as much as possible, do not gamble in front of children, because we will never be able to control other impacts that may result from our own actions. Even if children already know about our gambling activities, then giving them an understanding is a wise solution.
From their young minds they will think that there's something that they need to explore, as watching their parents enjoying it will create interest and, with how the technology keeps on growing young kids can easily access the internet and trace whatever interest they've got while seeing their parents doing something on their devices.
It's your responsibility to prevent your child being exposed to any form of gambling. You never know how far they can go in terms of following your steps, thinking that there's no problem if even at their young age, they will be able to learn how to play the gambling game that you are playing.
It is possible because many casinos nowadays do not require any from of KYC when creating an account in their webpages in the first place. Some technological savvy children or teen could easily use their own email address to create one and verify it, though I am not so sure whether it would be as easy for them to deposit, because the access they would need to some Credit card or exchange. It would be more likely some children would end up looking for gambling games on Google and play poker or slots with fake money in some webpages, from there it would only get worse in the case they got hooked onto those games.
I am not sure how common are fake money gambling games on the internet nowadays, but when I was a child, it was very easy to get to them in webpages which were intendes to host free games for children, most of them powered by Flash. It was a good era, luckily I did not got hooked to those games, as I preferred adventure games.
Anyways, regardless whether it is easier for children to acess to casinos nowadays or not, prevention and education are keys for them not to become addiction victims at a very young age.
I would rather to educate a children of mine, instead of making gambling some kind of taboo to them.