My nearly 3 year old, who we started potty training over Christmas uses the potty at home but refuses to use the toilet or his potty when we are out and about. He holds onto his wee for as long as possible but usually eventually has an accident. He won't even go at nursery. He likes going to soft play but had an accident there last week. We're meant to be going tomorrow but I'm worried the same thing will happen. I've told him if he uses the toilet or his potty whilst we're out he'll get a treat and asked him what he'd like. Hope it works. Any other tips to encourage him to go?