[It's because they love Hinata so much, obviously.

At that question, though, he kinda... fiddles with his handkerchief.]

Well - it may sound difficult, but a big-city chef like myself can handle that much work, right?
It's simple for someone like me!

... And, anyway, I'm not sure I'd be comfortable here if I wasn't working my hardest.

[He was always helping his mom at the diner, on top of everything he did to keep it open... cooking all day is just what he's used to.]