• Great paper but am not sure I know where the abstract actually ends so I think it will good to have the connecting sub head demarcate where it ends and the subsequent subheads like ‘BARRIER’ etc.
• Another thing is I think the very first paragraph though an introduction to the lives of these 4 categories of people can be married with the fourth, fifth and sixth paragraphs. Somehow it jumped at me as repetition; it just did not feel comfortable.