There's a saying: "You can start training at two and he'll be trained at three or wait till he's three and he'll be trained at three".
I'm all for giving it a try before age three but don't force it if he's not interested. You may also have more luck if you put him on the potty about 15-20 minutes after drinking.
My twins will be three in November. They've been interested off and on since they were about two but only recently have really been interested and willing to sit on the potty. We use m&m's. I give them one to initially get them to sit and then I put the timer on the microwave. I start with one minute and then go to two, three, and so on. If either loses interest, we just stop, put a diaper back on and move on, no more m&m's. If he whines/cries I simply remind him he has to sit on the potty in order to get an m&m.
at 8:01 PM on Oct. 1, 2009