I wanted to state (specifically for the post above) that this parent was presented with multiple options by me and she came up with an excuse to shut down every single one. I didn't suggest that pull-ups were the only option, I suggested training pants which are invented for the purpose of potty training, cloth training pants (a little different and used a lot by parents who use cloth) and I also suggested wearing underwear and then the pull up over. According to this parent none of those options worked for her.
Sorry, I may have misunderstood. I was responding to the mom's original message which just referred to pull-ups (not the other options). And that was what I could relate to.