It's an invaluable piece of kit and I have several, but I don't/won't carry one on my deck.

For me, they are limited use, a pain to deploy, and always in the way, and a potential safety risk.

I still carry on since they are very useful - just not on my deck

https://rnissenbaum.com/why-isnt-there-a-contact-tow-line-on-my-deck/