What is the easiest fish to take care of?

bettas are not hardy at all so i would definetely not recommend them to anyone who is a beginner, so first a golfish for children then a dwarf gourami for teens or a cherry barb or a gold barb or you could get a school of tetras, the neons are perfect, also loaches are really good to clean and so are snails sometimes sharks are easy to look after.