Big Brothers? You mean Marc, and Jeff, and Elon and the likes?
You can't buy alcohol or fags till you're 18 the same should hold true for 'social' media. It's just as addictive, toxic and harmful to young brains. Banning it is about caring for kids and society. 16 seems like a reasonable age limit.
Those robber baron empires should have long been broken up but they've bought up all the pols.
Go Oz!