[Halcyon]

I wouldn't shave my arms as the hair is often quite fine and not that noticeable so I wouldn't bother.
If you are considering it though, don't use a razor. Veet cream is probably the easiest way. You apply the cream, leave it 4 minutes, and then wash it off and the hair just comes off.
Do remember to do a test patch first to make sure you don't get a reaction to it.

I think guys should have hair as it makes them masculine and different from girls.
It's just if you don't want it in a certain place or have too much that I think it is a good idea to control it.

Everyones different though and remember that what one person likes another person doesnt. Do whatever makes you happy, you don't have to follow the crowds.