That might not be up for Steam to decide, first-sale doctrine already exist as law in many countries, what's missing is the enforcement of it for digital goods:

That might not be up for Steam to decide, first-sale doctrine already exist as law in many countries, what's missing is the enforcement of it for digital goods: https://www.rockpapershotgun.com/steam-should-let-users-resell-games-french-court-rules https://www.rockpapershotgun.com/steam-should-let-users-rese...