Yes EXACTLY. As a high schooler the age gap made me feel extremely uncomfortable even tho the couple was cute. Waiting until her graduate to start the story would've been just fine. Even waiting until he graduate from this point is kinda weird but 100% better than getting with a high school at your grown ass age.
What I found most awkward was when the seme's friend from highschool commented on how highschoolers are so youthful to them. Like, how do you not feel any guilt while someone you know that's around your age is saying that, the people you know are mentally at the point where highschoolers are just cute things they want to cheer on...
They don't look that far apart in age, it's not the age gap that's an issue for me, it's all the emphasis the story has put on that the MC is a highschooler/still a kid. One of the seme's friends from when he went to high school said that to them highschoolers are so young. It's that he knows the MC is in high school and is actively pursuing him and flirting. Even asking him out and saying flirty things. I saw someone made a comparison to dating an older person in highschool and how highschoolers are attracted to older people, but to me it's weird that the older guy is the one initiating as there's a clear experience imbalance and just because a kid WANTS to have sex with/date you doesn't mean it's okay to. We as the adult need to understand that teenagers aren't fully mentally developed and will make more genital choices than they should. That's why waiting is a thing.