"There aren't any good usernames left!" #futurefirstworldproblems

I can envision the following conversation with the young-lings sometime in the next few decades or so:
"Grandpa, when can I finally have your username?!"
"In time, child. For now, be happy that 'Awesomename123agazzzzxdx' wasn't taken already."
"But Grandpa, you barely use the internets anymore, do you even still remember your passwords?"
"DOHOHOHOHO(Always gonna laugh like this when I'm older), of course. Soon, perhaps in my will - you will be able to inherit the infamous username 'Awesomename1'! The original, only for my favorite grandchild."

And then, most likely, a big feud would erupt (because good usernames will be as rare as social privacy) and I'd inevitably fall in the inter-family war, break my hip and die with the passwords in the aftermath. Sadly, future scientists never discovered how to cure fatal hip accidents.