I'm not concerned with the image, I'm not concerned with the safety aspect (I've read up on it) but what I want to know about is how difficult are they? Am thinking of getting 7 yo DD some but she isn't very good physically-speaking and can't ride a bike etc. She's quite nervous about physical things and hasn't got great co-ordination. Is there any way she could learn to do these or are they really hard?
Also, how do you walk in them? If the wheel is in the heel then don't you have to walk on tip-toes to avoid sliding everywhere (which would obviously be very uncomfortable).