Kids being kids, at some point their tablet is more than likely going to be dropped, and quite probably onto a hard, potentially damaging surface. Given this, having a protective case that can reduce the chance of damage is an important consideration (and it can be an important consideration for adults and their own tablets as well).
The LeapFrog Epic does come with a protective case in two different colours, green and pink. This protective bumper has strengthened corners and covers more of the tablet than those on some other children’s tablets, with cut-outs for the various ports. It can also be removed if desired. The LCD screen is also described as being shatter safe.