Ania - my son takes suzuki piano and I know EXACTLY what you are talking about! He wanted to take piano and started as a preschooler. It has taught him a lot about a discipline, and even though it comes to him very easily he still needs to practice daily to get continued results. We still use little bribes and games when we practice (he's 7 - 1st grade). But it so obvious he loves the results. When we go to anyone's house with a piano, he's usually performing with minutes (whether we'd like him to or not). It's actually an area where it's socially "ok" to show off a bit. He regularly sits down and practices his favorite songs independantly or composes or figures out songs he's heard.