Why do immigrants need to find an intermediary

There must be a reason for immigrants to find an intermediary. For example, some people do not understand foreign policies, do not know which country they are suitable for immigration, and do not know whether they are suitable for immigration conditions. It takes a long time to emigrate, even three or four years. Some intermediaries can customize the immigration plan for you, and the time can be shortened and the immigration can be rapid. You can learn about Bal's overseas immigrants.