As most of you know, we have been potty training Chase of several months now but we still are not what I would consider "potty trained". Chase can easily use the potty but mostly refuses to poop on the potty and if he is feeling particularly unmotivated will refuse to pee on the potty as well. We go back and forth between underwear and pull-ups, sometimes even into diaper if he really digs his heels in.
The surprising part is that Olivia is totally into using the potty. She is only 15 months but almost exclusively poops on the potty (even tells me "potty" when she has to go) and pees on the potty several times a day. Every time she uses the potty I am shocked that she is doing so well. I have been joking with my family that I think she maybe off the diapers before Chase, maybe that is the motivation he needs to commit to potty use.