FWIW, my son had a 25 year old male kindergarten teacher who was absolutely fantastic. He looked at each kid individually and I actually got the feeling he loved and appreciated each kid for who they were. He dealt with the squirrelly boy thing like a champ and did his best to provide fun extra challenges for kids who were ahead. His classroom seemed more kinetic and more open ended.

Our first grade teacher had at least 15 years teacher experience and has 2 daughters. She left much to be desired. Honestly, it didn't seem like she had the energy to deal with kids like the previous teacher did.

So anyway, I think it is definitely personality dependent. There were 4 kindergarten teachers at our school - 3 get rave reviews. And those 3 were all young teachers without children. The more experienced teacher got more mixed reviews. There is a 2nd grade teacher at our school I would have considered trying had we been assigned to her. She has more experience and kids of her own.