Im reflecting from the pov of a parents role re: the kids. If you give the kids what they want, its going to be soda and candy every day of their lives. Some deciaions are tough, e.g. delayed gratification, and holding ones ground, but do voters even care about stuff like that?
Can we even hope on common sense, when the population is concerned?
The role of a government is to collect taxes, then use those taxes to provide the most good to the greatest number of people.
In general, voters will have many ideas as to what that implementation should look like, which is why we elect representatives.