NCPA offers us some interesting statistics about minimum wage.
It's untrue that the majority of minimum-wage-earners go on making such low wages for years and years. According to the U.S. Bureau of Labor Statistics:
About 63 percent of minimum wage workers receive raises within one year of employment.
Only 15 percent still earn the minimum wage after three years.
Moreover, minimum wage earners comprise only three percent of all workers paid by the hour and only 1.8 percent of American wage and salary earners. Large numbers of minimum wage earners are young people: 27.5 percent are between 16 and 19 years old and those between the ages of 16 and 24 constitute 52.6 percent.