My dd is 32 months and I have tried once to train her, but after 9 days I gave up as I didn't think she was quite ready and she rarely asked to go for wees it was always on my prompt.
So we're away to Spain for 2 weeks at the beginning of July (villa with pool), so we'll have the privacy and freedom to try it and my dh to help and she'll basically be outside all day, so maybe its worth a try - what do you think?