The level of care you need depends on your paddle. High-end carbon fiber paddles frequently are quite brittle in that you can chip the blade. Some paddlers are just very careful with their blade, and others that don't want to risk chipping their paddle even go so far as to put an edging around the edge of the blade of the paddle. Simple electrical tape will suffice, or there are aftermarket paddle edging products. Of course, this will affect the performance characteristics of the paddle, which is typically the whole point of getting a high-end carbon fiber paddle in the first place. There are protective paddle bags on the market that you can use to carry and store your paddles.
What is the best paddling technique?
How do I paddle my SUP?
Does the paddle float?
Can the paddle be used as a kayak paddle?
Will Tower Made cut and glue my paddle?
How do I know what length my paddle should be?
How do I cut a SUP paddle?
How do I epoxy my paddle handle?
How do I care for my SUP paddle?
Can my paddle damage the side rails of my SUP?