PAT Testing, or Portable Appliance Testing, is important for safety in all types of property.
Most (but not all) appliances ought to be tested on a regular basis yearly (dependant on the type of premises).
Modern plug tops have plastic insulated shrouds covering about half the pins (except the earth pin). Check your plug tops. If they are all metal then you have a potential danger.
PAT Testing is a low cost, but highly effective safety measure.