The earliest city roads were designed for horses, carriages, and pedestrians. So when loud, fast, self-propelled vehicles first appeared, they were widely seen as dangerous machines that did not belong on ordinary roads.

In 1865, Britain introduced the Locomotives Act, later commonly associated with the “Red Flag Act.” Under these rules, a motor vehicle had to be operated by at least three people. One of them had to walk ahead of the vehicle, carrying a red flag to warn others. In towns, the speed limit was only 2 mph.
In other words, the machine was forced to move at roughly human walking speed.
Stablecoins are in a similar position today.
They are often treated as “dollars that might scare the banking system.” Banks worry about deposit outflows. Central banks worry about weaker monetary control. Regulators worry about runs, money laundering, and cross-border capital flows. So many early regulatory requirements are, in a sense, red flags placed in front of stablecoins.
Maybe the real issue is not that stablecoins are too dangerous.
Maybe it is that the roads were built for horse-drawn money, and the people walking on those roads are not yet ready for money to become internet infrastructure.
We at @allscaleio are building the roads right now.