so i'm planning on going to disney world with 3 of us. my question is should i try to find a 4th person to go (which i'm kinda trying to do and no one wants to go)...reason being because i know a lot of rides such as splash mountain, spaceship earth, etc... only have a spot for 2 people to ride together (side by side i mean) & i really dont want any one to have to ride by themselves or with a stranger. any advice? i mean am i overthinking it by not wanting anyone to ride alone or should i really try to find that 4th person so its even? lol 
also how crowded is it around dec. 19 - 23rd? it being around christmas and all.

also how crowded is it around dec. 19 - 23rd? it being around christmas and all.