he can basically become a full-time pro hero if he wants to. So no, losing One-for-All is not the main reason behind his decision. Rather than simply losing One-for-All, what affects Deku’s ...

Deku versus All For One was a major battle, especially when it happened through the body of Shigaraki ... For one, he isn't a full-time Hero, which means that he isn't going to be in the top ...

My Hero Academia‘s final war against the villains really put Deku through the wringer as he was carrying the weight of the world on his shoulders. Being the final one who could use One For All ...

For instance, All Might's support item couldn't handle OFA at 20%, but Mei Hatsume's rendition of Deku's arm bracers could, and later, Melissa Shield's Full Gauntlet withstood OFA at 100%.