Parents spend 18 years, and often more than that, financially supporting their kids and making sure that they have everything they need every single day – A roof over their heads, education, clothes, food, and supplies, parents are required to supply all these and much more to their kids, and they usually do it without so much as a 'thanks' in return. Does that give parents the right to start demanding their kids things in return the moment they become independent? Well, that is debatable. Some…