I am a male and used to be a bicycle racer, triathlete, and swimmer. For those of you who don't know, guys who do those things often shave their legs. I did it and I have a few observations...
1) I HATE SHAVING MY LEGS!
2) Fresh sheets, long pants, swimming, rding a bike, and most of all, making love with a woman ALL FEEL FINER with shaved legs.
3) It is a LOT OF TIME AND WORK to shave ones legs and how I made it a bit more manageable was to every 4 days, repeat the pattern of shaving one of my L/R thighs/calves. I am very grateful to any g/f who shaves her legs.
4) Having spent a lot of time in Europe where women often don't shave their legs and being aware of the level of effort required, I'd never ask or require my SO to shave her legs - but I do prefer it.
5) I do however ask emphatically that she shave where her legs meet! MMMM-GUD!