This actually happened to me yesterday. I was wearing
a lifejacket and the others were not. Nor did I insist that
other wear them. I did not feel the conditions merited
lifejackets.

However, the boat was very stable and the water was
cold enough to kill such that a lifejacket would not have
saved anyone if the boat went down.

I did not allow anyone to leave the cockpit. See my
reply to Doug.

Bart

wrote
Not wearing life jackets in gusty conditions, you deserve a knock down
to convince you otherwise.