Road toll rights!
This is a form of taxation that has existed since ancient times, and even today, Kingdom Commissioners are stationed on certain roads to collect fees.
Road tolls target not the commoners, but the merchants and the elite class. According to Katerina's prediction for the future, those who can afford to ride carriages between cities are either rich or noble. Even if not wealthy, they certainly wouldn't have to worry about their basic needs.
If it's just for the commoners who can barely maintain a subsistence level, they would either choose public carriages or opt to travel on foot or hitch a ride when heading to another city, neither of which requires paying road usage fees.
The road usage fee is already included in the ticket price.
Beyond the issue of road maintenance, another purpose of charging fees is to recover costs. Marvin suggested in the meeting to use asphalt for paving roads and concrete for certain sections, which is a significant expenditure.
