Re: At Voyna i Mor, re: hazards.
"Add a child with fingers covered in peanut butter, jam, snot, grease, ear wax, fingerpaint, chalk dust, glitter glue, random "classroom pet" fur/poop/food, and you can kiss that touch screen goodbye.
Add in the inevitable kid that "accidentally" uses a permanent marker, ink pen, crayon, or coloured pencil, whoops there goes another screen."
Dude - Screens are much hardier than you seem to give them credit for - literally nothing that you described above would take more than a wet wipe to sort out.
Also screen protectors are a thing.