Why is a road necessary for a people to see a place?

I grew up in a beautiful area of the world with no "road access" - boat, camel, air, horse, walk, off road bike with long range tank, yes.

Marked road, convential car access - no.

You can also walk there. The best beaches in my areas are the ones that need a 20+ minute walk through a forest to reach. Even though every locals know about them, they aren't as crowed as more accessible beaches.