[ Why is he so hesitant to actually feed and support himself? Does he expect everyone else to be generous and benevolent enough to help a starving beggar? She's seen plenty of them kicked around and ignored back in Mondstadt, forgotten by all of society until her fellow sisters showered them with pity and charity –and even that could only take them so far. They'd go right back to begging a week later.

It's naive not to utilize the rare opportunity hovering in front of him if it means extending his survival, even if Rosaria suspects the room and board and the stipend aren't unconditional. ]

Even if there were a barter system in place, you would find yourself without anything to offer unless you plan to sell your body, which would probably not net you much either.

[ Maybe if he put on some muscle and actually took a bath and healed up from all those bruises and maybe got a whole new personality and–... yeah, too much to fix. ]

Either way, I'm in no rush to be paid back.