IMO i really believe for my children (and patience) the older the better. My DD#1 wasnt fully TT till 3 years and we never had an accident. I didnt even attempt no pullups at night till she was 4 years. I actually found her TT experience easy peasy, i really believe it was due to her age....
I agree. Nina has been relatively easy to tt, and I think it's because of her age.