I walked into daycare last night and the teachers had A (12w old) in a Bumbo seat! I purposely let her sit in there for a few minutes while I gathered her things and spoke to her teacher so I could observe how she was doing because I really thought it was kind of early, but she's also always had very good neck strength. She was doing very well - she held up her head, was looking around, and able to move her hands up to her mouth and stuff. But she was slumped a bit to the side. I did some research last night and results are mixed - some say it's fine that early, some say no way. As I said, she seemed to be able to hold her head up fine. I didn't see it "flop" once while I was in there. But the slumping makes me a little uneasy.

Am I over-reacting? If you saw your 12w old baby in a Bumbo, what would your first thought be?