No child will train til they are ready. Trust me.

Both my older DD's were 3 or just over. Was not happening no matter how I tried before then. DS spent a lot of time naked. Then when he'd wee I noticed he like to wee on things so I made a game of it & got him to wee on a rock in the garden, or ants or something. Worked for him, lol. He was trained by about 2.5.

DD3 just clicked by herself. Before 2.5 she started, in the last 2 months or so the only accidents have been while strapped into the car on long trips. Still night nappies though.