How old do you have to be to buy GTA 6? The minimum age each store lists

The Xbox Store lists the ESRB rating of Grand Theft Auto VI as MATURE 17+, with an age of 17.

The same Xbox Store listing has also carried the entry as RATING PENDING LIKELY MATURE 17+, again with an age of 17.

Two strings, one listing. This page quotes both rather than picking the tidier one, because the honest read is that the store has shown the entry in both forms — so treat the board side as unsettled and the purchase side as the part you can act on.

The number each store asks for

A buying restriction is not a content rating

On the Rockstar Store, the PlayStation 5 listing carries a required minimum age of 17.

The Xbox Series X listing on the Rockstar Store carries the same required minimum age of 17, so the two platforms do not differ on this field.

A required minimum age is a field on a product listing: who the store says may put the thing in a basket. A board rating describes content instead. The two can land on the same number and still mean different things, and only one of them is a checkout rule.

Where the one stricter line comes from

The Rockstar Store's Vice City Collection box carries a product safety warning: choking hazard, small parts and sharp points or edges, not for children under 3, adult collectibles, not a toy, Ages 18+.

That label belongs to a physical object with small parts, the kind printed on any collectible that ships in a box. It says nothing about who may buy the game, and reading it as the game's own rating is exactly the mix-up this page exists to undo.

Is the rating settled?

Not in the material tracked here: the Xbox Store entry has appeared as RATING PENDING LIKELY MATURE 17+, which is a store carrying an expectation rather than a board publishing a decision.