My dad keeps pressuring me to learn how to drive but I really don't want to.

I don't even know why, but I look down on people that drive cars. It's something that has been embedded into my subconscious and I can't get rid of it anymore.
It has gotten to the point where I think it is ethically and morally wrong to drive a car.

Am I wrong to think this way? I have walked and used the train my entire life.
I'm thinking about building a bike rather than buying one. This won't be for a couple years down the line since I am in college and a complete poorfag.
What would you say is a good budget goal for building a bike? Don't say 2000 dollars because I don't think I can collect that much in two years.

The way I expect this to work is like computers, where you can build a great but simple system for 800 dollars, and a very fancy system for 1500+.
So in the same way, tell me about the base good types of things I would look to buy and it shouldn't cost more than 1000. Thanks