V.T.
We have the Kindle Fire HD and my 5 year old loves it. It is easy for her to navigate and she loves the games. My 2 1/2 year old boys also like it. What I love about the Free Time feature is you can set up different users. So your 10 year old can have different access to different games and limits than your 6 year old. Just remember to make sure it is set for the appropriate user. It is quite easy when it is in regular mode to purchase apps. It is a matter of clicking a button. If there is a way to password protect purchases in regular mode, I haven't found it. When it is set on Kindle Free Time, the kids can not purchase apps. I also have some books on it for myself and find them easy to read. Our Kindle has taken some falls over the past year and it has held up nicely. Sometimes it will not turn on and I have been forced to do a hard reset (hold the power button for 30 seconds) and it starts up right away. I also think it has a pretty good battery life depending on daily usage. I don't think you can go wrong with a Kindle.