Why is the use of rail transportation high for moving goods and low for moving people?

This question needs to be improved. It makes a false assumption.

Rail transportation is used greatly for moving goods in the USA but not as much for moving people. In the UK , Rail transportation is used more for moving people. It is about population density - in the UK it is high and it is just not feasible for example to move everyone who works in London by any other means than rail.
In the USA or Russia, the distances are so vast it makes sense to move goods by rail - but the travel times by rail for people would be horrendous so it is not used as much. So population density and size of country are key factors. There are other factors too - such as politics etc,
This question needs to be improved. It makes a false assumption.

Rail transportation is used greatly for moving goods in the USA but not as much for moving people. In the UK , Rail transportation is used more for moving people. It is about population density - in the UK it is high and it is just not feasible for example to move everyone who works in London by any other means than rail.
In the USA or Russia, the distances are so vast it makes sense to move goods by rail - but the travel times by rail for people would be horrendous so it is not used as much. So population density and size of country are key factors. There are other factors too - such as politics etc,