It is not an explicit legal requirement but encouraged through a coercive network of public/private regulation.
> Is there any legal pressure to keep the data on it up-to-date?
There are legal consequences for failing to update data.
> Are the standards for 'crude state IDs' identical between states or would you have to know the rules and regulations of 50 different jurisdictions?
Yes, within the United States there is a "Real ID" standard promoted across states by the federal government. A business operating in any particular jurisdiction is benefited by counsel regarding localization.
It is not an explicit legal requirement but encouraged through a coercive network of public/private regulation.
> Is there any legal pressure to keep the data on it up-to-date?
There are legal consequences for failing to update data.
> Are the standards for 'crude state IDs' identical between states or would you have to know the rules and regulations of 50 different jurisdictions?
Yes, within the United States there is a "Real ID" standard promoted across states by the federal government. A business operating in any particular jurisdiction is benefited by counsel regarding localization.