Probably for other mass transport.
Discussion
If Govt. wants this, We can use a specific policy to the target.
In Thailand, when Diesel’s subsidization is activated, Benzene users have more painful because the companies have to maintain their profit by increasing Benzene’s price and Govt. has marked up Benzene’s price to cap Diesel’s price.
The most of painful Benzene users is people who use motorcycle for a daily transportation because they will not able to be pick-up car owners and Thailand public transportation in up-country areas is worse than some country that Thailand wants to be such as Japan or Singapore.