One of the reasons smoking may be decreasing in children is because of the use of vapes. The constant news items and reports I see on tv disagree with you VS that mental health issues in children aren't worse, with an increase being attributed to lock downs due to Covid.
If there is a generational parenting competition going on, it is just as likely to be because some of today's parents are of the belief that everything they do is right, and a lot if not all of how their parents parented was wrong.
From it's first existence in 1889, the Children Act has always been focused on protecting children from harm.
Chat GPT - worth getting to grips with it



