He wants to work, so that speaks well of him there. He put the eldest children in charge of the younger children, probably for no more than 2 hours or so. I think we all used to do that or it was expected of us take that burden from our parents on occasion.
Although I can’t speak about him personally, I would think that what he did is something that was reasonable. I’d give him a chance if I had been the interviewer.
The mother picked the kids up.
10 year olds babysitted all the time when I was growing up.