My parents bought me two as pets when I was 3 years old. I remember the disappointment when I got them, as I really wanted a dog!
I’m now 43 and have two dogs… as well as the two original tortoises. I suspect the buggers will out live me.
For some reason my two have been easy to keep, they hibernate in a cellar and live in a fenced run in the garden in summer. They have escaped in the past, and as mentioned they can shift when they want to, so we have their names painted on the back (although the neighbours know where they live and generally return them before they go too far.) We thought we had lost the male one autumn, only to find him again in the spring as he emerged from his hibernation in the flower beds.
However – as a pet they are pretty dull, but if your daughter is into reptiles then probably worth a bash.