That's actually true in India, because India has a huge population. So no matter where you are in India, you are never too far from civilization. Some people have backpacked across India with just a few essentials.

Nepal and Bhutan has less population, so the density of humans vs nature is less there.

But if you stick close to the hiking trails in this vast & beautiful subcontinent, you can backpack easily from one rest stop to another.

And after some hours of tough trekking, when you encounter the warm welcome, bonhomie, food & drinks, music & laughter from the natives/locals, it is an amazing experience, worthy to be cherished. Faith in humanity - restored!