Is it OK to be picky about math you find interesting? I am a layman interested in mathematics, and I would like to hear mathematicians' views on the following: Is it normal to be picky about mathematical stuff you find interesting?
I ask because 80% of math I encounter does not seem interesting to me. I want to know if this is true for most people or if there is something wrong with me.

I would say it would be unwise and rather odd for a mathematician to dismiss any part of the subject matter of mathematics as uninteresting. The subject is very large and there are deep connections between apparently very different aspects: as a simple example, consider the many different proofs of the fundamental theorem of algebra. If 80% of the maths that you encounter seems to be uninteresting to you and you can't see why that 80% of interest to anyone else, then I don't think maths is for you. (I'm personally not very excited by the the theory of differential equations, but I know it's an important subject and I appreciate all the work that's been done on it over the centuries.)
