DD does say please and thank you, but also does need reminding an awful lot,
I'm of the opionion that, It is something that she will get eventually with prompting. Every time she is given some thing or asks for something and doesn't say please or thank you, I will remind her. DP is totally the opposite from me, he will say she can't have something or take something away from her, If she doesn't say please or thank you, Cue DD getting very upset and crying, Cue me getting pissed off with him. At what age should they be saying it without being prompted to do so.