That seems like a pretty bad example. House construction is pretty regulated in most places, with governments dictating anything from materials and design down to the number and location of electrical outlets.
A better example might be something like... rock climbing gear, maybe? It's hard to come up with things that are both life-critical and unregulated, whether because regulations are necessary or because government likes interfering.
A better example might be something like... rock climbing gear, maybe? It's hard to come up with things that are both life-critical and unregulated, whether because regulations are necessary or because government likes interfering.