Because SS would not be able to climb 90’ ladder with all their gear like;
Finger nail polishing kit
iPad and phone
Extra sun screen
Umbrella
More than 1 round of ammo
Lipstick
Etc
Once someone mentioned it I now notice the immediate aftermath scenes as Trump was ready to put up his fist you can see the short female agent changing hands for her sunglasses as they lead Trump to the vehicle.
So important to keep them from being scratched. /SARC