Many children who gamble today learn it from other children in schools, and they grow this habit into an addiction simply because the parents don't pay attention to notice and stop this while it still very early.
So, raising a child isn't just about given him or her the best of life in terms of finance, but also teaching them the right from wrong and to stay far away from wrong things.
I agree with you that some parents who never hard all the playtime and the love they wanted from their parents because of the lack of financial resources, tend to misgive that love when they become parents and are privileged to have financial powers, that is why you will see a parent giving an underage kid an Internet-enabled device like smartphones and computers, and allowing them to access content that is way above their age without any limits or restrictions from the parent, this has destroyed many young people life as they tend to abuse such privilege some becomes cure gambling addicts from their computers games before promoting into full-time gamblers.