Well, I mean, why mountain bike when you can dirt bike?
Me, the concept of getting submerged in a kayak and trying flip it back around or escape terrifies me. SUPs seem less scary. And probably easier to get back onto (into).
Which is why I took a lesson on that. Specifically that! I love the SUP. I get uncomfortable in the seated position with my legs out front and encased in fiberglass. Also it's too hard to launch off our dock. No shallow sand beach. Canadian shield granite! I just put the SUP beside the dock and step on.