There is a lot going on in the world regarding age verification. Why does every website or operating system (and possibly later: smart appliances like your fridge??) need to know your age?
While I don’t agree with a generic “think of the children” excuse, I do understand that there are certain sites you want to restrict for younger ages, like adult and gambling sites. But are we really willing to scan our ID cards and post them to those sites? Or, possibly worse, have a provider with a centralized database containing all these ID cards? Privacy AND security hell.