If you were a school teacher what grade/ age would you teach and why?

I want a new job that I can get something out of besides just a paycheck. I thought that shaping young minds and educating someone so they could potentially have better futures would be more fulfilling, but I don’t know what age group I would like to teach. Looking back I wish I would have had more direction when I was a teenager to help me find my passions and to help me set goals for my future, but teenagers seem to have worse attitudes compared to younger children. On the other hand, younger children are still just learning the basics and most are not ready to start finding their own path. I want to have the most impact that I can.