Do you have a single username you feel attached to?
Or do you like to use different names for different occasions?
Edit two and a half days later:
Thank you all for answering my question! It was so interesting and fun to read all of your responses.
I really appreciate you for taking the time to write.
Pretty attached. My parents picked it.
If I could just be “Bill” everywhere I would but it really only works on the fediverse.