Is that survivor's bias? there are many other mental development goals chidren should have. for the very small number of children that will learn to program at that age, there is no harm in delaying it a few years, but for the vast majority whose development would be stunted, or worse, they'll be harmed.
Some kids learn to drink and smoke at a that age too, and many turn out ok.
Kids who drink qt an earlier age respect it more. Americans waiting until 21 ends up in binge drink / problem drinking. Social media is going to be the same.
No they don't, that's a lie adults tell themselves. Many adult alcoholics started drinking as children. People who "respect it more" tend to also be alcoholics. Very few people who start drinking as children abstain as adults.
Keep in mind that alcohol is also a carcinogen. Similar to cigarettes, even one drink shouldn't be tolerated. Even if a certain amount will have no ill effects on average, impacts on individuals depends on individual factors, so one harmless drink for you might be one deadly drink for someone else. It is poison.
That said, I don't judge anyone who uses substances. But there is no tolerable threshold to giving children poison.
Some kids learn to drink and smoke at a that age too, and many turn out ok.