Also remember that the Studios is a tiered FastPass system. So, if you are, like my husband and I, just two riders and want to do Toy Story Mania and he can brag to me how much he beat me by, we FastPass that attraction so we can NOT FastPass Rock N Roller Coaster. As two people, we will look at the single riders line and see if it's worth our time. If we think we can get in without that much of a wait, we will. So yes, groups (even of two) will do single riders because of the tiering system.