the U.S. Coast Guard.
Personal flotation devices (life preservers) are required to be worn by children under the age of eight years.
They will generally not turn an unconscious person face-up.
Exposure to the elements seems the most common reason I've found in my research of what causes personal flotation devices to wear out.
Type I, II, or III PFD
Type I, II, or III PFD
Children must wear personal flotation devices at age 12 and younger.
A standard lifejacket
The Kokatat website offers personal flotation devices. Their products include items such as drysuits, insulation, personal lift jackets and much more.
The best method for storing personal floatation devices is to keep them next to each seat in the boat when you are on the water. You can also store them in a cabinet or bin as long as they are within easy reach if they are needed.
Air actuated devices, inflating tires and flotation devices.
Any/all children need to wear flotation devices when on board a personal pleasure craft. Everyone should wear one just out of common sense.
Pool shops, sporting stores, department stores.