It is still part of parenting. They have an important role but there's a need to know what's the root cause of it. For children that are engaged with those things early, you really have to look at how the parents take care of them. If it's not for the parent's negligence, they will find the cause of it and will help their children to teach and explain why they shouldn't be engaged with those things. Too bad for those children that are engaged with those early if they've got no parents anymore but they should have the guardian or any relative that takes care of them.
Parenting is surely playing a big role for their kids to be raised up well and properly but there are factors which could really affect their decisioning and it would vary on how they've been able to aware
on some possible situations that they might encounter.
Not only gambling is exposed to children but other things as well which might be immoral or something which isn't good for young minds.
Its the job or responsibility of a parent on taking good care and leading them into a good path.
Yes, it's their role to protect their children from everything that these kids might discover in a harmful way. Their young minds will definitely think of it most of the time and cannot stop getting on it from time to time if they've introduced and discovered those things that they shouldn't. Like gambling and other internet materials that are too innocent for their minds and eyes. We all know it and if you're a parent you understand that because when we're on our younger days up to teenage days, we know how it goes.