How Does the enviroment really affect us?...

Many say that the enviroment is not as important as we sometimes make it, that it does not strongly affect our personality that it does not change the way in which we develop. The truth is that if we move that one tents to loose sleep due to the changed sound background. It is also true that different enviroments offer different choices to the person in question, now it might not affect the development of the personality but I' am certain that it does help to create certain likes, dislikes as well as different physical abilities. If someone has to walk or swim everyday this person will certainly be fitter than the same person having the choice to use the bus, and sometimes using that. Thus making the person that has to swim and/or walk fitter, now the enviroment creates circumstances under which the person has to the abilities. The use of those abilities insures the increased ability to use those.
What all this rambling basically is saying that I do not believe that the enviroment has the small role that we often atribute to it. That the enviroment dictates how we use the abilities that we have available to us.