No. I'm a lot older than 9 and I have broken 2 MP3s and lost one And they were cheap ones. Unless she is much much better than me at being careful, don't waste the money. Could you get a cheap one to start with?
I had a Philips Cube - 29.99 from Currys (I think). Liked it a lot until I lost it. Not a faff to use at all.
Must agree with Kerry. I was never without my sony walkman cassette player as an early teen and onto a discman when they came out. My hearing is shot to pieces. I now listen to my ipod at about 85% volume.
No, for the reasons KM gives, and which I outlined in much more detail on this thread a while ago.
The original thread was about 4yo, but I'd feel the same about a 9yo, or a 14yo tbh. Put it off as long as possible. Get her some speakers instead if she wants to listen to music and just put up with the noise. It's a small price to pay to protect their hearing.