I have written on this subject many times in the past in the vain heop that it was just a phase she was going through but dd is now coming up for 3 and a half and shows no sign of changing.
Basically, she is a good girl who (normally) does as she is told. SHe is not boisterous, she can entertain herself for ages and has excellent imagination with her games etc.
MY problem (not hers) is that she doesnt seem to enjoy playing or being with other children to the point where if a friend comes to our house to play, dd just sits there and says that she wants them to go home 
If she does decide to play for a short period, its only a matter of time before DD gets the grump because her friend wont do what she's told/give her toy back/share etc etc and the whole thing dissolves into a hysterical cry fest!
Is it a problem for my dd if she doesnt interact with other children or should i just get off her case and allow her to do what she wants? (think i answered my own question there.....)
Im just worried that she's going to end up friendless in the future because of how she is with other children now. I dread her mixing with other children now as i know how it will end up. Its easier to stay at home and let her be happy playing on her own but i know thats not practical (and i for one need to get out the house every now and then!)
Your thoughts would be greatly appreciated X