Honestly, I think it should be the other way around.
Courage is needed to edit. Great hunks of courage. You've flown through writing the 'Great American Novel' - or something at least a lot of fun - and then you have to put away all sense of the joy that was writing... and hunker down with a red pen and decimate what you've just done. It seems insane, to me. Worthy of a bottle of something!
But of course, the editing I'm doing now is on my first book ever. I've learned a lot since I wrote this book. Since I began editing it. The second book is not going to need near the editing this one does. I've got a 'handle' (sure) on POV, I've honed my characterization skills, and I'm definitely getting the hang of landscapes and such. So - hopefully, when I take the second book to my editor (this January), I will be pleasantly - NO - deliriously surprised when she says, 'Wow - great work. We've got hardly a thing to change.'
I hope I'm not smoking something!