The US? Random example: https://www.seattletimes.com/nation-world/the-dea-seized-her...
>Don't you think we need trusted authorities for enforcement?
Perhaps, but not everyone is lucky to live in a low corruption country.
Your account can be frozen and confiscated with little recourse.
Let assume the person is in China. Or Venezuela.
Perhaps it will be one day be moved and utilized by family descendants, whom have had time to find themselves in safer conditions.
That's the difference.
Authoritarian countries can always simply block their citizens' access to exchanges, and even just outlaw crypto ownership.
Even if its outlawed, that only slows it down at scale. People will still accept it if it has value. Drugs/prostitution/contraband can be traded even in the places where it is most strictly punished, outlawing it does nothing.
With crypto, the only way the govt is doing that is if they coerce you. Try that with a "bank account".
In lots of countries this is not guaranteed. Most recent example is Venezuela, central authorities imposed limited withdrawals.