That's a tuff one. My mom did that to me I went to six different schools, by the time I got to my second highschool, I didn't bother making friends. I was still into sports I wasn't depressed or anything just didn't bother with friends everyone had their own click. From my own experience, I would say that if your child is fourth grade or younger he should adjust fine. I had a hard time adjusting after changing schools between 7th and 8th grade. Sports helped cope with the constant changing in schools.

If your kids are outgoing they should not have any trouble making new friends. I know my oldest son would do fine, he's such a social bug.

I wouldn't worry about the room thing, I shared a room with my sister and it was great. She was my best friend growing up, if either of us were scared at night, we had each other, we didn't run to Mom and Dad.

Good luck and try not to worry so much, kids will adjust.