[togusa2017]

i would say ipad.

1. Bigger display.

2. Lesser chances of clicking the unknown.

3. When things are bigger, they look more friendly.

[thorwwed9]

Also at 78, she is probably farsighted so needs to see bigger text. There's an iOS setting for that. But it doesn't work so well for browsers.

I wish mobile browsers would let you increase text size and not magnify/zoom. I remember old Android browsers let you before. And of course there is the Javascript Safari hack. It's just they aren't permanent.