Rui

You are right,she is just uncomfortable to be by herself around strangers

I think I can help she :) 

thank you very much!

You are such a nice, thoughtful mom, Engela~! <3

because She is a little afraid of strangers

Hehe, small kids are like that (I will admit I was ^^;;;).

If she is around other children who are not afraid to go alone or who she can go with, it might help!

Perhaps there is something she can't do by herself or she is just uncomfortable to be by herself around strangers...

What is she afraid of?