Surroundings and circumstances sure fuel anxieties, but it's hard to say whether they can cause someone to develop social anxieties. Mainly because everyone develops it differently.
For me personally, I don't think it would have done much. Bullying on multiple occasions and constant humiliation caused me to develop social anxieties. In the present however, I think it could help me overcome it with ease. That is, if I had a say in how circumstances were to be changed.