Most have a wet clutch, but not all. Ducatis generally have a dry clutch, for example.
What do you mean by "ride the clutch"? Feathering the clutch out on starts and after downshifts is good technique, but otherwise the clutch isn't constantly "ridden". Just because the clutch plates are lubricated doesn't mean the can't wear out...there is still friction between the metal plates and friction pads.
So, yes...it generally takes longer to wear out a wet clutch than a dry clutch, but they can still be abused.
What do you mean by "ride the clutch"? Feathering the clutch out on starts and after downshifts is good technique, but otherwise the clutch isn't constantly "ridden". Just because the clutch plates are lubricated doesn't mean the can't wear out...there is still friction between the metal plates and friction pads.
So, yes...it generally takes longer to wear out a wet clutch than a dry clutch, but they can still be abused.