Regular mumsnetter, NC for this 
Had a little disagreement with DH and just wondering what you guys do/think. Thanks
DD1 is 4.5yo and DD2 is 3. When they have a bath occasionally I go to the next room and fold clothes.
Bath water is 1-2in high and, not only do I have the doors fully open, the walls are almost paper in this house (super annoying actually I can hear everything when someone goes to the bathroom
). I keep my ears attuned to what is happening and keep checking.
DH doesn't like it because I'm not constantly in the room.
I feel like the kids are older now and I can let them play a little bit. Am I being a horrible parent??!! 
At what age did you feel more comfortable leaving your kids semi-unattended in the bath?