This is the third question that I give valuable feedback in a row :D
Some years ago many people who lived in the rural area.
The idea written is not complete, as you do not write the top level of a sentence containing one subject and one verb.
Simply write this: In the past, more people lived in the rural areas.
Where they know each person in their area
This results in them knowing one another close that those who lived in urban areas.
but today many people in big cities where they only know a few people.
but today, as more people move to urban areas for some reasons, their relationships are not strong anymore because they only know a few of them.
I think that living in the rural [...] know about what is happening outside.
Although some people argue that rural areas made people live in slow pace, I would argue that there would be sturdy, harmonious and peaceful relation of family.
hope this helps :D
a heap of luck