Is one obliged to have one’s life jacket serviced?

If we had our say, yes. If you had the final say, that ought to be the case, too. If we go by legislation, the law is keeping out of it in this case. But if there has been an accident which was due to a life jacket not having been serviced, then the law becomes involved again and makes it clear to the person who has no obligation to take the life jacket for a service that it is his duty to service the life jacket.