I'll scream it from the mountaintops again: Valve should add infoboxes to games on Steam that require a Photo ID to access features or Online.

If Rockstar wants to go through with this for GTA etc., there needs to be basic information for consumers on the storepage about it.
The storepage should inform consumers so that they can make a properly informed purchasing decision. Having anything less means starving consumers of information they should know before buying, and as a storefront, it's your obligation to list the requirements for the product you're selling. Just like Minimum Specs and EULAs. Steam already does this for other stuff, so when this goes live, it needs to happen on their end. If not? we need to make a stink.