Never been able to set off a flare whilst unconcious! but can see the point about lifejackets. Problem is, it's the Hire boat muppets that are most likely to need them! However, to be effective, a flare must be seen as such and the observer know how to respond. (calling emergency Services etc). At sea flares are instantly recognisable and other mariners (should) know the response. Even then in anything but inshore waters or a busy shipping lane, the chances of a flare being seen are slim. Do we really need to bog down boating with even more 'elf & safety?