There are several reasons why someone may be disqualified from being drafted in the military. Here are some of the most common reasons:

• Obesity: Being overweight or obese can disqualify someone from military service, as it can affect their ability to perform certain tasks and put them at risk for health problems.

• Education: Those who do not meet the minimum education and AFQT (Armed Forces Qualification Test) scores may not be eligible for military service.

• Criminal Records: Those with a criminal record may be disqualified from military service, depending on the nature of the offense.

• Health Problems: Certain medical conditions, such as gastrointestinal disorders, anemia, and immunodeficiency, may disqualify someone from military service.

• Drugs: Recreational drug use can be a cause for concern when it comes to military recruiting, and those who admit to using drugs on a regular basis may be disqualified from military service.

• Failing to Register: Failing to register for the draft or join the military as directed is a felony punishable by a fine of up to $250,000 or a prison term of up to five years. If someone fails to register for the draft by the time they turn 26, they are no longer able to do so. Then, if they apply for any government benefits at any time after that, they may be denied.

• Conscientious Objector: Those who are opposed to serving in the armed forces and/or bearing arms on the grounds of moral or religious principles may qualify as conscientious objectors. However, they would still have to do alternative service.

Its important to note that just because someone is registered with the Selective Service System does not mean they will automatically have to serve in the military if a draft is reinstated. If they have a physical or mental condition that keeps them from serving, that will be decided after they are drafted. Claiming conscientious objector status may also allow someone to serve in non-combat positions or avoid military service altogether.