One of the rules that my local game store uses with Adventurer's League (not sure how universal it is) is that any aspect of a character can be changed after creation up to level 4. Want to change gender? Fine. Race? Cool. Class? Spells? All fungible. Adventurer's League characters all use point buy or the standard array, if there's some concern that someone may just decide to make themselves into a superpowered whatever.
This way, if I realize that I've accidentally not changed the voices on my characters and so can't tell them apart, I can just make that change without having to reroll, restart, and throw those wolves off the bridge again.