I wouldn't think too much about the girls are usually quicker than boys thing. Just try not to worry about what all the other kids her age are doing, they will all do things in their own time.
Summer is definitely the best time to do it (if she's ready) I just let DD go around with no undies on for a while till she got the hang of getting to the potty. Also made less washing for me cause in the beginning she wouldn't tell me she needed to go she would just go sit on the potty herself so if I wasn't in the room she'd just wee through her knickers!! Oh it's fun and games


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