Why does this game require internet?

[TahkRJ]

Is it just to verify users, and keep the younguns out?

Or does the game store the user created content in a cloud/database?

[Jak (ripened peach)]

Basically it's to verify users, keep out the young'ns, and make sure everyone is always up to date with the latest version.

No user created content is stored in a database.  The main info in the database is who owns what so the game can do the autodownloads and updates.