Hi! I was told this was stupid, but I figured why not.
Maybe make the Region select button blank on the character selection screen?
I was making a Kanto character but had forgot to switch it to Kanto, so it defaulted to Unova (too bad I already had a Unova Character.)
I can understand not implementing this but for the "stupid" people like me it could save 72 hours, lol!
Thanks if read,
Whims