You just couldn't help it, could you? Did you even try to resist? It doesn't matter. You couldn't have stopped yourself even if you wanted to. You are a product of your environment and your choices have all been set for you. It's like someone wound you up like a kid's toy when you were born and set you on a set path of which you can never waiver.
For all my Intro to Philosophy students, this position is known as causal determinism. We are but mere products of our causal environments (material, social, cultural...). Ultimately, it all boils down to the fact that we are all a part of the physical universe that runs according to concrete natural laws. When you throw a rock, that rock's trajectory and destination can be calculated without error given that we know all of the laws and conditions surrounding that throw. Pure physics. For us, no different. Pure physics.
But we think that we are somehow more special than rocks, right? We have minds. We have reasons. Alas, they are but smoke and mirrors. When we act, we always act according to some desire, that desire that is highest in us at that moment. And that desire is one not forged within the depths of our own being. It is nurtured in us by the environments we find ourselves (again, material, social, cultural...). Why am I writing this post? It is time for a new post to surface and I've wanted to write this post for some time. I am desiring to write this post, and it just so happens that that is the desire that won out tonight among my other desires. Thus, I acted on it. Could I have done otherwise given the exact same causal conditions. No. Under the same conditions I would have done exactly the same thing.
Just think about that. Think back to dinner this evening. Given the same exact causal conditions, you would have eaten the same dinner. Now think to this very moment. Given the exact causal conditions you find yourself, there is a precise action that is determined for you. And it is determined for you not because there is some force hovering over you making you do what you do. You will do that action because that is what the myriad of causes will have you do.
What I find so interesting about this topic is that it makes so much sense and yet it is quite disconcerting, no? We so love to think that we are above causal determinism, that we are such a people that enjoy a freedom that nothing else does. But might that desire itself be a function of the society we find ourselves??