So you want to live in a world where the government takes care of your kids instead of you, while using invasive regulation that doesn't need to exist. Got it.
Do you know why nobody questions alcohol/tobacco regulation and kids? Because showing your ID to a shopkeeper doesn't tie your indentity to everything you do online. The shopkeeper won't even remember your identity in a few hours.
Also if you think children cannot buy alcohol and tobacco products, and aren't bypassing the laws, you probably in an alternate universe then.