Also fun fact, what pictures don't show is how many Japanese students dress in uni. Because all schools in Japan have uniforms, regardless of if they're private or public, you get pretty much everyone dressing a little weird because it means they can all actually try out fashion.
yeah, japanese college students are more similar to stereotypical anime-personalities much more than high schools, i've always wondered why media tries to portray an idealized high school "seishun" thing when people irl after high school while still being young + partying in college are much more interesting than the over-exaggerated media in itself.
many plot holes in yandere sim (weird decisions, horrible hairstyles, strange conversation, lack of restriction/excessive freedom) would be solved by setting it in an arts university (as in 芸大), just with the addition of everyday clothes instead of uniforms and a different campus.