Teaching kids some basic financial principles should ideally form part of their upbringing. Short-term insurance is key among them, since it provides an important safety net that helps to secure your long-term well-being. It can be difficult to give up something when you do not see an immediate benefit, making short-term insurance (and most financial-must haves, for that matter) a difficult sell. But getting kids to understand it (particularly the patience it takes to stay covered), is a lesson worth learning. Here are some tips.