Hi there. My personal view is that the larger, Syrian (or Teddy bear) hamsters make better children's pets. As they are larger, they are easier to handle, and from my experience a lot more friendly than the smaller Russian hamsters!
As far as keeping the hamster in the bedroom, the only problem i can see there, is that hamsters are nocturnal, so will be awake at night- this may keep your daughter awake, other than that, there would be no other issues to keeping the cage in the bedroom.
Andrea
Veterinarian
bvm&s mrcvs 15 years as a companion animal veterinarian
No, they are no more likely to bite, especially if regularly handled from being brought home. If they are used to careful handling, they rarely bite.
Whatever you decide, i hope your daughter has great pleasure with her hamster!