Yasuda's eyes were wide open, watching all these kids run around happily was a welcome change of pace. Something bothered him though, due to his unpredictable mood swings and tendency to forget things, he wasn't exactly a good adult to be around with.
Yasuda was worried he might scare the kids away. He didn't want that.
He looked at Ueda. "Sensei, is it really okay to be around kids? I get mood swings and forget things. I'd probably scare them..."