Each and every ONE of them

Every people can access their own social media account with the touch of a finger.

This is partly forgivable. We know that millions of people (= millions of fingers) use social media, and this writer is making a statement that applies to all of these people. However, there is some faulty grammar:

  • Every field is going through rapid change.
  • The crowds were getting worse every minute!
  • These days every genre is using every sound.

Every + field, minute, genre, sound (singular, even though we're thinking about all fields, minutes, genres, sounds!)

I know. It's crazy. And the same applies to each:

  • Each correct answer is worth 10 points.
  • Each room contains high speed wireless internet access.
  • Each drink contains 108 calories.

Each + answer, room, drink
(singular, even though we're thinking about all answers, rooms, drinks!)

Summary

Returning to our opening example we at least need:

Every person can access their own social media account with the touch of a finger.

However, when we're talking about people it is much more common to use words like everyone or anybody:

Everybody can access their own social media account with the touch of a finger.

Finally, a common expression used to emphasise all of them is:

Each and every one of them.

Each + one; Every + one!