Nobody in their RIGHT mind will say that man is 20
I'm not saying you have to like it or anything.
Just simply stating what I know from personal, firsthand experience lol not to mention my younger brother, a 22 year old, may be taller than me by nearly a foot but he's also got a baby face. People think he's just a really tall 13 yo even if he's nearly a decade older than that.
This is also especially true for most people of Asian decent. The only person I have ever known that was shorter than me and around the same age was my Chinese ex-coworker. She was 4'9" and a year older lol
It's not that ludicrous for someone to be older than 18 and still look like they are younger than that. Your personal feelings aside based on the art style, you can't deny that this does happen to people irl.
AND ITS ALWAYS GONNA BE THE KID TO SUFFER BECAUSE OF THE PARENTS OMFGG