When I was learning to play piano, I had a strict instructor who made me rehearse finger exercises and chords for at least an hour a day. After a few years, I gave up on piano and started playing drums. My problem was that I just wanted to learn how to play a few popular songs on a keyboard and maybe accompany my church's choir from time to time. My instructor thought I wanted to major in piano performance in college and go on to be a world class pianist.
One thing I would suggest to anyone who wants to learn how to play the piano is to make it clear to your instructor what your ultimate goals are. My drumming instructor took a different approach when he learned I was not interested in playing professionally. Many piano instructors will do the same thing, as long as their students make it clear that they are not looking for classical piano training.