What do you think is the point being made at the very beginning of chapter 5 when Christian tries to catch up with Faithful, is proud of himself for passing him, and then falls?

Shows of how frail we can be and should rely on God for help

Explanation:

This explains how human we are, being human does not make us God's or super hero, it just makes us to realize that we are humans and can fail or fall at any point in time and would need to rely on a greater help than ourselves which is Good himself.

a: social security and social programs

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.