Dabi never came to be, endeavor didn't abuse his children and wife, actually they were quite the loving family, while natsuo and fuyumi didn't follow into their fathers hero career path touya and shoto did, of course during this time shoto was in U.A. high and touya was already a Low-rank hero, once the doctors helped him figure out how to manage his quirk without injuries he was pretty good I'm both long range and close combat, which made him an excellent hero, and you get to be his teammate.