faithbw,
Some iPad settings that might be appreciated by seniors:
Settings > General > Accessibility
Turn on:
Larger Type
Bold Text
Increase Contrast
Reduce Motion
On/Off Labels (try it, some people like it, some don't)
Also, if grandkids will be involved, you might want to turn on Restrictions. You need to enter a passcode, keep it simple like: 1234.
Settings > General > Restrictions
Restrictions are OFF (disabled) when Green and restrictions are ON (enabled) when Gray.
You might want to restrict "Deleting Apps" and "In-App Purchases".
I'm a senior with grandkids ranging from 1 to 18, and have done the above on my iPad.
Good luck.