We're attending a wedding next week with ds2 who is just turned 3 and 2 weeks into potty training.
He's 90% reliable for wees if he's not wearing anything on his lower half
but when he's dressed we're still at 1 or 2 changes of clothes a day. Poos are another matter entirely.
Also, he's wearing a kilt and, while I've no direct experience of potty training and skirts, I'm thinking there's more scope for a puddle.
We should just put him in pullups for the day and take him to the loo regularly shouldn't we? Even just writing it down I'm thinking I'm mad for considering anything else.