Some Government policy imposes to take a special orientation in technology or protocols.
Changing rules of a government, not enough futuristic
Different juristic view on the same rules, not enough maturity in existing rules, the progress of codifying related rules is very slower than coming new technologies..
International Compatibility (ex. GDPR)
Some countries have legal limitation whereas the others have nothing or different type of that, resulting in incompatibility
Different use of existing rules
Local legitimation (also sector or domain legitimation) affects international behaviors. Local rules are various and people bring this to the ecosystem and cause problems
Misusing of DID:
There is defined rules or legal commitment for misusing punishment in real world but not precisely for misusing of DID
It could happens whether national or international
User Responsibility: Users will need to be mindful of what data they share and with whom. Managing which verifies/relying parties should have access to which type of personal data can become complex.