The only time it's from strictness is when it's elitist/leftist/feminist parents pushing their preferred stereotypical gender behaviors onto the child who might be autistic or just not socially developed in that way, a girl who's a tomboy, or a boy who they casually expose to misandry. Sometimes they are homophobes who can't accept their kid is gay but trans is trendy and acceptable. It has nothing to do with smoking or drinking. Almost all kids are using the Internet. "So they found the Internet" sounds like a phrase from 20 years ago. :)