My youngest, Olivia, has always wanted to play drums. We convinced her that it would be better for her to take piano lessons first, as piano would give her a good all-around understanding of music.
Well, she's been playing piano for about 4 months now and is doing very well. We never have to remind her to practice and she really enjoys it. But she still would talk about how much she wanted to play the drums. This talk was fueled by the fact that a local music store where Lea takes guitar lessons had a used Pearl set for sale.
After some discussion, we told her we'd meet her 1/2 way on the purchase of the drum set. Little did we know she already had enough saved up to pay her portion. So now she is taking drum lessons in addition to piano lessons and our "music" room no longer has space for seating.