Yep, we have demonstrated that it's ok by not doing anything.
So now they're all proud to show the world who they are. And until they start getting their shit rocked, that's going to continue.
Teenagers are making that tough transition into adulthood. Unless he absolutely reeks I say let em figure things out. They're exploring new ideas, and if they're to be an adult they should be able to make their own decisions (within reason).
Something tells me Elon gets to keep his though.