Some people will fail to take their medicine and get even sicker. Some people will quit perfectly good jobs for no good reason and end up poor, and their children with them. Some people will take drugs they shouldn't take and die of overdoses. The list of stupid things people do is endless. It multiplies as new opportunities for stupidity appear.
People trade their food stamps for drugs and wind up going hungry.
Other people, thinking social security will take care of them in old age, buy much more expensive cars than they should have, drive too fast, and then die when their airbags trigger and break their necks. Stop trying to live everyone else's. You've made your share of stupid decisions too, you know. Morality is not relative. Right and wrong are absolutes.