For those with the non-hydrostatic models, have you fished them in the rain extensively?

As fishfordollars said, even though you have the SOSpends or something, you still need a regular life jacket for everyone on board. And I believe the rule is 16 and under cannot wear them in most states.

I wonder what the reasoning is behind this? Will these things sink if non-inflated (manual models)?  It would seem that an inflatable PFD is just as useless if not worn as a regular PFD also not worn.