Many people are fine with changing their names and the ones that aren’t won’t do it. There’s your answer. Don’t rag on the people that like changing their name.

Middle school and under kids

Everything would take time to be fine for the younglings but many of us grew up in the age of non internet connected computers and consoles so it would be completely fine. Might actually be nice to be fair.

I think you answered your own question. It’s still “cheaper” than your second option.