Why does the government create trade barriers if they can potentially hurt a worker in an economy due to low wages?

1, What can be done to avoid trade barriers?

2, As a consumer what are your experiences with trade barriers?

3, What alternatives do you recommend to replace trade barriers?

Why do you think labour standards and working conditions are lower in developing nations of the world rather than in other countries?

Should a country impose higher safety standards on imported goods that exist in foreign countries where the goods were produced?