You're right. You can live on that amount, perhaps well depending on how and where you situate yourself. It's basically middle-income. How far that income will get you in a place like San Francisco, Los Angeles, or New York is another thing.

And sitting at a desk in a heated/air conditioned office is not just like every other job - especially those that involve cleaning.

But I agree that if you don't enjoy programming, you're probably not going to be especially good at it.