Why are people so funny about age gaps now?

I find it so strange how many people jump on the words "predatory" and "paedo" now... i never had that experience until recently. I got with my partner when i was 19 and he was freshly 24. There was never any comments.. none of our friends ever commented until somebody in my friendship group a year or so down the line found out his age. She got on with him exceptionally well for a year, always sang his praises and now suddenly she won't talk to him because he's apparently a "weirdo"? He treats me amazingly, i'm seeing the whole different life stages argument everywhere. People are acting like 24 year old men are buying houses and having children the same year! I have more in my savings then he does, i work full time, i pay bills, i drive. Why can 20 year olds make decisions about drinking, buying houses, gambling etc but can't choose who they date anymore? I find it incredibly strange and just wondering what other people think about it