My wife rides a scooter, and I am fairly insitent that she is ATGATT. I have been forcing myself to do the same, even when it's hot as Hades.
She wasn't really convinced of the need until the other day when she stepped on a rock the wrong way and fell while we were walking. Skinned her knee up pretty good, right through the sweats she had on.
I pointed out to her that she was barely moving compared to what she would be doing on her bike...
She's not complaining about her gear as much now.