I started training my oldest just after she turned 2. I was like you, I didn't want two in diapers, and I thought she was ready. She was 2 1/2 when my son was born, and wasn't fully potty trained until right around her 3rd birthday. It was very frustrating for the both of us. My son was much easier in the potty training process. When he was 2 1/2, I started to potty train him; he didn't have much interest or seem interested before then. Things were going well, but he wasn't ready for regular underwear yet. He spent a weekend at my moms, and when he came home, he was fully potty trained. (My mom still won't tell me how she did it.) My youngest daughter is now 2 1/2, and she seems ready, but refuses to actually go when she is on either her potty chair or the toilet. She loves taking off her diapers, and sometimes wearing big girl underwear, and she never has accidents then. When I know she has to go, I'll put her on the potty, but she will hold it. The second I put a diaper on her, (and I mean literally within 60 seconds...I've timed her) she will pee in her diaper. So my girls are a little more stubborn about it than my son was. They will get the hang of it when they are ready. I don't particularly like having a 3 year old still in diapers, but they aren't the only 3 year olds who aren't completely potty trained. Another mom is absolutely right when she said it's harder to push a child that isn't ready than it is to have 2 in diapers. Start introducing it whenever you feel she is ready, but don't get down on yourself if things don't go smoothly with her. Very few one year olds are potty trained, but it never hurts to let them know at any time how "big people" use the bathroom. Good luck!