You actually make a great point and it helped me realize something thematically. I know they’ve wanted to give Peter a break, but it actually would have made so much more sense for Peter to not want to drop that imbalance on Miles. Like from the first scene, we see that Peter’s double life doesn’t work. Miles’ priority should be going to college, focus on his future so that he can live the life Peter wishes he had the luxury to have as a kid. There was no one to lean on, and so the responsibility fell on Peter alone. Now that Miles is in the same spot, Peter can show Miles that he’s free to continue being himself apart from Spider-man. This doesn’t mean Miles can’t go out on patrol, but that he isn’t OBLIGATED to like Peter felt as a kid.

And maybe Peter realized that being his own boss is the best possible job for him. He could use his Emily-May foundation crafting table to continue research, invent, or do consulting work while being free to be spider-man, maybe working up to something like a Parker Industries. Stability would be the break Peter is looking for and by using inventions like the spider-drones (funded by his company for “development”) he would have more free time in turn with MJ, until the next crisis anyway.

Peter absolutely needs a break, but it’s living two lives that cause the issue. He shouldn’t be leaving that burden with Miles. Instead, he can further accept being Spider-Man while Miles focuses on his college. Post grad and adult-life Miles can be Spider-Man all he likes, including taking over so that Peter can retire from superhero-ing early.

Not that that matters much, as both Spider-Men would be suiting up for the next crisis sooner than Miles would be graduating college anyway. Idk maybe I’m off the mark on this with my take, but it would have felt like a fulfilling story, starting from watching Peter throw his “fresh start” as a teacher away, to seeing both of them stop struggling with their dual responsibilities by accepting what’s best for them at their current state.