My 3rd dd is 2.5 years - definately ready physically for potty training, but will not will not sit on potty, or loo. Her 2 big sisters give her loads of encouragement, but to no avail, she is "scared"! Maybe she is just not ready to "let go" - any advise pls - thought I was ezperienced mother of 3, but begining to doubt my skills! I have offered bribes but nothing has worked so far!