There are a couple of different ways in which you can learn the piano. You can take private, in person, lessons which would be the traditional way. Another completely different approach is the online type.
There are differences between these that one might not think about such as instrument selection.When you take lessons in the traditional way you typically have the expertise of the piano teacher to help you with instrument selection. In such cases you typically rely on their expertise. Online courses are different.
If you want to see a more in depth discussion on this topic to include reviews and ratings of some of these courses check out:
http://www.pianolessonsonlinefinder.com/how-to-learn-the-piano/
If you