You've obviously not really played any of those games. I can easily list their grinds for you if you'd like:
FF V: Job system
FF VI: Esper development + spell learning via Espers
FF VII: Material leveling, sidequests (related to Materia)
FF VII: Main Story: Minimal, Draw system really. Omega Weapon: Draw system and material farming via tedious methods. Card game.
FF IX: Item hunt (primarily via Chocobo Digging), Card game.
FF X: Item hunt, Sphere Grid.
FF XII: License system, item hunt via specific monsters (tedious)
FF XIII: Materials, Gil, Sphere Grid, The Backtracking (oh GOD the backtracking...)
Wow.. What a trashball. You're basically saying I am a liar because you grind in games. I didn't grind in any of those games. and still achieved success.