DD is 21mo now but this started at about 17mo. She sits in her highchair and rubs her bits up against the bar between her legs. Same happens in the car seat and supermarket trolley. I've tried ignoring it and telling her to stop but neither work. It's really embarrassing and it distracts her from eating, plus it drives me mad. A lot of the time we just feed her standing up to avoid it. Should I take her to the GP or just accept it as a phase that she will hopefully grow out of soon?