Is it normal to not care about anything?

I achieve certain goals in order to obtain certain basic living conditions, but other than this I am not materialistic, spirtualistic, or emotional except on certain occasions that are few and far between and I cannot rationally explain those occurences. The only thing I find relevant is entertaining myself. I have found many ways to do so both lavish and low. I tend to lean towards low from lack of ambition or motivation to achieve more than a modicum of mediocrity. In order to afford the bare necessities for survival, and some spare resources for entertainment, I avail myself upon the public and put on a mask I am not allowed to take off. I am indifferent towards most emotions and ideals, but hold my own principles highly and dearly. They are forged from hard learned lessons and mistakes I shan't repeat. But no one seems to understand this and it makes my life difficult. It is easy to understand a religious or spiritual person living a non materialistic life. But one such as I ends up with an endless stream of queries as to my indifference. Is it unusual to be content? I do not understand the struggle for more. I do not wish to spend my time achieving things to reach a goal. Why must I have a goal? Who decided I needed a purpose, or that I should care what it is? I believe that upon reaching self-awareness a purpose was achieved, and that was to give us the means of deciding our own purpose. I care not for your comments likes or replies and only posted this to clear my mind of the thoughts. The likes of you peons are not fit to judge the normality of the world.