Prabhu how do we explain according to Vedic philosophy the existence of uncontacted or completely isolated tribes like the Sentinelese who are said to be almost 60000 years old?
Contact with other people depends on guna and karma. Some people have the guna and karma of meeting many and many types of people. Others have the guna and karma of meeting a few and a few types of people. There are also stages in life where social contact increases and decreases. Some people are born in small families and others are born in large families. Some people have many friends and others are few. Guna is also called nature and karma is also called nurture. You can read the article How Guna and Karma Create the Bodyif you like to know more.