I have a small walk (crouch)-in attic from the closet of one of my upstairs bedrooms. It has insulation on the walls that form the bedroom closet/wall. Given how small the attic is, whenever I go in there and place/remove things I tend to brush up against the insulation pulling it out from between the studs (see pictures below).
I plan on stapling plastic to the studs to hold the insulation in. Is there an issue with this plan?