Way more distractions on an iPad, though.
Assistive Access can limit user interactions to a few apps.
https://support.apple.com/guide/assistive-access-iphone/set-...
Do not Disturb mode on to disable notifications
Self control to not get distracted
I don't get this whole "Too many distractions" shtick. If you don't have the self control to swipe away from your book to sneak in a round of Angry Birds, you'll probably end up pulling your phone out every 2 minutes to check your Reddit feed