2021 DC Rear head restraints folding down

What am I missing here? What is the purpose of folding down the rear head restraints?

 

See out the back window better.

 

I think its actually to lay them down when using them flat? or do you remove them? I cant remember when I had my 17 I know now on my 21 4 Runner they fold down and tuck in to the front seats

 

That's what I thought at first but you have to remove them to lay the seats out flat.

 

^

 

It makes it super easy to get my dog hammock in and out, that’s for dang-on-sure.

 

Folding down when not in use makes it easier to see out the back window. My other car has a button that electronically flips them down for the same reason.