That is from the back of a current, non-expired LOUISIANA driver license.
Regarding the State of Louisiana, a allegedly a person must be 21 to:
1. Get a CDL. [unless its for intrastate commerce . ]
2. To buy or drink alcohol.
3. To buy or redeem lottery tickets.
4. To purchase a handgun or handgun ammunition. (18 for rifles or shotguns or related ammo.)
Lots to be gleaned from that.
Consider that (1) federally chartered banks are not necessarily going to be subject to the 21 limit, (2) the relevance of a Social Security # to a given situation or scenario.