Things I have discovered with ds:
Much as I would like him to go to the toilet, and miss out the potty stage - he would like to go through it thank you very much.
He likes having his potty in a specific place. In his bedroom near his wardrobe.
he will now use a toilet if his own potty and venue is not available. But for some time it was pull ups for trips, and lots of holding on.
He likes privacy, he can maybe cope with another child at nursery, but certainly no adults.
He does not want to be taken every 15 minutes. Every 2 hours is fine, he can hold on until then.
Initially he only noticed he'd been in those padded trainer pants, because the wee pools in them and was all warm. he hated that sensation and was motivated to change.
A month on, I still have to take him to the potty and say I will talk to him when he was done a wee. He grumbles and rumbles and then 10 seconds later "I've done a wee". His voice is still surprised.
We gave all the nappies to santa in return for presents and that worked really well. Here in NZ we have nappies in pink packets for girls. That's probably what I would have tried.