Final answer:
The age limit for selling and serving alcohol in the United States is 21, as mandated by the National Minimum Drinking Age Act of 1984. The claim that it is 19 is false.
Step-by-step explanation:
The statement that the SOP permit holder must only sell and serve alcohol to guests who are at least 19 years of age is false. This is because the National Minimum Drinking Age Act of 1984 requires all states to set their minimum drinking age to 21. Any state that did not comply would face a 10 percent cut in federal highway funds. The act was heavily supported by organizations like MADD to reduce alcohol consumption among youth. While there may be some variations in enforcement from state to state due to the powers given to states by the Twenty-First Amendment, the federally mandated minimum age across the United States is 21.
Some argue that the law may discourage responsible alcohol consumption among young adults, contrasting with countries that have more liberal alcohol laws. However, in the United States, the age limit is enforced to promote safety and responsibility.