My son is 3 years old and he is still not getting ready for toilet training. I am trying with pull up. I have to encourage him a lot to sit on toilet then he sits and does toilet but does not go by himself to toilet. Even at his daycare he does the same. As he still soils twice or thrice during day time, I prefer pull ups to undies as it can be a mess for daycare teachers. I am not sure how to train him for toileting?