bakudeku age gap

izuku was 14 already while katsuki was well 7 yet. Izuku knew katsuki since he was well a baby izuku was already in middleschool and katsuki still in elementry school… yet it didnt stop katsuki to say he was gonna be izukus Perfect husband in the future even tho izuku thought he just said it as a joke since he was still so young.

so today when izuku wanted to go home katsuki suddenly was at the gates with a flower ring in his hands-?