I'm 35 and have an established reputation as a curmudgeon. When people my age were first getting cell phones, I kept a landline. I eventually came around -- now I have a flip phone ;)

It might help that I'm from a religious tradition closely affiliated with the Amish (Mennonite), and have developed a mentality of being intentional about both adopting new technology and how I use it once I have it. Likewise with social trends -- there are certain sports I enjoy and therefore watch quite a bit, but I have no idea what clothing or TV shows are "hot" this year.