Most Helpful Guy
I can't comment on myself because I shave my head anyway. I can somewhat understand that it might be a big thing for a girl, particularly if she has painstakingly grown that long hair over many years. However, in reality it's a small sacrifice that could make a huge difference if people support the gesture by donating/sponsoring.
Most Helpful Girl
I've done it. It's not so bad, and it grows back fast. Plus you can try pretty much every hairstyle along the way. I've got long hair now, and like it this way, but you're going to have hair your entire life so why not?