Izzy is 3.5 and has been fully TT for about a year now and has probably been wiping herself for poo most of the time for around 3 mths? She does it herself at creche and doesn't get skiddies (tee hee) and often she will call us to come in (because we have taught her to call us when she is done to wipe) and she will say she has done it herself, and sure enough she has and has done a great job.