Is using a non-ASCII name a good idea in America?

Grimes and Elon Musk named their baby: X Æ A-12. How bad idea is it to use non ascii names? For example, does the COBOL unemployment platform would support his name? Would it be possible to get a social security number for the baby? 

I think it exposes their baby to be an easier target to impersonating attacks using Unicode hacking