Here is the USA you may only fly for fun with the basic certification (which is free on-line). If you lived here and your neighbor/friend/family member/ etc… asked you to use your drone to look for their lost pet, you would have to turn them...
Yes Thank you for the heads up. In Canada we need to have a drone license if the drone weighs more than 250 grams. We also have to register our drones on the transport canada website. There is no stipulation on whether you are compensated for...