When you are young sometimes in period or for some things, it can make your life better if you go with the flow.
Always being opposite can also lose it's charm, at least once you are young it also is nice to be a part of what is accepted.

But I realized that consumerism is the most idiotic way of giving back all my effort to people that are smart enough to charge me 200 euros for a pair of jeans. I realized that in a capitalist world we are fighting to survive which means that cash (whether we like it or not) is one of our only weapons that we have in order to be free.
Using your weapon in irrelevant situations means that you would have no more fire left once the real chance appears.