My username may seem normal to you, but in Türkiye, it causes many people to make fun of me because it looks like a Youtube channel name used by kids aged 12-14 and making jokes about it which I don't like all.
My excuse for not changing my name is that I'm known by that name. Some examples:
Even though people in my country make fun of me for that username, I got respect from the people outside of my country and this is why I still kept this username and will keep it. If it made me stop being productive, which is a high possibility in my country, I can look at what I've done before with that username and be proud of myself. Also will look for opportunities from abroad countries if this happens anyway.
I hope this was a good excuse for your question.