There are many people who go to live in different countries. To what extent should people be allowed to move freely between countries and live where they choose? What are the benefits and drawbacks of this?

Nowadays, it is true that the flow of

people

has become a common phenomenon, so many

people

choose to work or reside in another country. In my view, we should allow most

people

to commute freely between nations

while

restricting some illegal individuals considering its benefits and disadvantages. There are many merits of taking some restrictions on public international transportation.

Firstly

, it is essential to safeguard national security for many states, so some appropriate limitations are necessary.

For example

, most mighty

countries

in the world

such

as the UAS, Britain and China have policies to deny some risky individuals coming into their realms.

Secondly

, relatively free laws for public international transportation can boost the world's cultural exchange.

This

is predominantly because if a person lives in another country which is far away from his hometown, he will bring the culture of his family to

this

new area.

However

, we can't deny

this

measure

also

has some disadvantages. The significant problem of

this

policy is the brain drain, which has confused numerous

countries

. Because some developing

countries

can't supply enough workplaces for intelligent citizens, these talents will leave their hometowns to find more profitable jobs in some developed regions.

As a result

, these developing

countries

may gradually lose their chance to compete with the big ones. Another drawback is the restrictions that may be abused by governments.

For instance

, if an influential state wants to prevent another one's development, it is feasible for these governments to reject any individuals from another country entering their regions. To summarize, I believe we should guarantee most

people

can freely transport between

countries

and some restrictions are

also

required. Simultaneously,

although

this

policy has many benefits, its drawbacks should

also

be considered by governments.