[dspillett]

> Controls close to the edge: On many devices swiping actions close to the edge will trigger phone status menus or switching between apps. This will confuse children.

It is a pain enough for adults at times!

A related issue is how easy it is to trigger your first point (accidental multi-touch, or just accidental touch, at the side of the display due to low or zero gap from the device edge to the screen edge) on many modern devices.