Sounds like the guy is a moron. I teach PreK in NJ and I have my BA, post grad work, cetifications etc. I am a licensed preschool to third grade teacher. I choose to teach preK because it is where my heart is. I still have to meet state and district curriculum requirements etc. I have to score high on the ECERS (early childhood environmental ratings scale), if I don't I can loose my job and I have no tenure. When I tell people what I do for a living I always feel like I need to qualify myself. In fact, last year at a teacher appreciation event I was speaking to two women about our jobs. Then one of them asked me what grade I taught and when I said preK they both looked at each other and smirked. Then one of the women said "Well that's not really teaching, your just a glorified babysitter really." Then they turned their backs to me and stopped talking to me. I was stunned.
People can be very rude. I know how important your job is, as do you, as does every child that has the benefit of being part of your classroom.