All of the above mentioned are highly influential mediums that effect us to a certain extent. In the seminar we discussed 'forensic' and 'psychological' identity, drawing on the fact that one is fixed and the other subjective. Forensic identity, as mentioned in the reader, is like a fingerprint - it defines who you are as a 'physical' self. It is important to remember that this form of identity emerged due to political issues and 'keeping tabs' on society for apparent security reasons. It is argued that this form of identity is unique in terms of DNA data, like all the different type of animal species and plants that exist.
In my opinion, our environment influences our 'psychological' identity (Giddens refers to it as a narrative story that always changes). In our capitalist society, we are lead to believe that we are unique when we purchase certain goods whereas in fact they are just materialistic extensions of the 'self'. These items are also mass produced and extremely similar to each other (e.g computers, phones, clothes, kitchens, etc.) Their value and purpose is of the same- to entertain, to communicate, to wear.
As human beings we are disturbingly easy to influence psychologically, so it is of no surprise that the Media and Politicians take great advantage of this. I think nowadays it would be impossible to not be mentally influenced by anything, be it your family, culture or even less complex mediums. Most of us have subjectively accepted this process as it is a major part of society and cohabiting together.
I do not think any of us are 'distinct' or 'unique'. It is a pessimistic way to look at it but everything has it's price tag or market value. We are now subjected to everything we consume like lab rats, with our beliefs being pushed aside. This has given rise to a number of negative connotations such as stereotypes, and consequently, we blame each other for our problems.