It's one more thing to lug around. No one is saying that a mouse is hard to use, the point is that touch screens are even more intuitive. I have heard anecdot

It's one more thing to lug around. No one is saying that a mouse is hard to use, the point is that touch screens are even more intuitive. I have heard anecdotal evidence of very young babies, like 9 months - 1 year, using ABC apps. They just "get it" and for them, "it just works".