Reddit reviews California Home Goods (2 Pack) Dual Height Step Stool for Toddlers & Kids, Potty Training Stool for Bathroom, Kitchen, Two-Step Design with Soft-Grips, Stepping Stool for Toddlers (Black)

We got our two year old girl a potty seat you put on the grown up toliet and a little set of stairs (like this but another brand). We heard this recommended at this little potty learning lecture a parent group had, the social worker suggested it was easier to just get them used to the big toilet from the beginning.

Worked well for us. For out of the house you can pack a little potty seat or as the social worker suggested I just held her on the adult toilet if we were at a grocery store or restaurant or something. This lead to her learning to hold herself, which she now does at almost three. She also now sometimes sits on the toilet without her seat or climbs up without her stairs to feel "bigger" but not always. So the transition is happening naturally.

Also, we don't have anything to clean. I don't want to have to dump and wash out a potty again and again.