can make the trip easier on everyone. a child does not always understand that it can take a while to get from one place to another. they will get impatient because they want to have fun.
watching movies is going to be great entertainment for them. there are many different movies that they can watch. using something like this is not going to create a lot of extra bulk to take with them.
games that are meant for traveling can take up a lot of space and many of them do not provide a couple of hours of entertainment in one setting like a movie will. some require the person to keep 