English is an organic language and can shift subtly with each speaker,. Especially if prior usage makes communication more difficult.
NOT having distinct terms for sex and gender makes communication and understanding harder. If you have alternate terms you think are better I’d love to hear them., but if all you have is an insistence that “incorrect English” is a thing I’ll just have to wish you a good day.
I think rhe voting age should be the lower of the minimum age to labor or the age of potential conscription less the age of the longest-term official whoss job includes sending people to war.
In the USA, that would put the voting age all the way down to 12. And having both been 12 myself once and having close family who were recently 12, I’m entirely OK with that.