Markets in Everything: Replacement Drivers

The NYTimes reports on Korean replacement drivers – they drive drunks home in the drunk’s own car.   

Their work has become such an essential part of life in Seoul and other
major cities of South Korea that the national statistical office last
year began monitoring the price of replacement driver services as an
element in calculating the benchmark consumer price index. An estimated
100,000 replacement drivers handle 700,000 customers a day across the
country, the number increasing by 30 percent on Fridays, according to
the Korea Service Driver Society, a lobby for replacement drivers.

This seems like a great idea and it’s obviously a huge success in Korea. Why not in the United States?