That really depends on where you're going. Maybe you want to go to a different lake, or spot on a long river, than the train or bus line goes. Maybe your skill level or body benefit from a specific kayak you own. I think this kind of all or nothing perspective, that seems to presume that _no trips_ should involve a private vehicle are not constructive. (I say this as someone who does not own or regularly drive a car.)

But _most_ trips probably aren't to go kayaking, and I think it's worthy to consider what a shared transit system that could support a meaningfully larger fraction of trips would look like.