* High school diploma or equivalent (GED): Most colleges require a high school diploma or its equivalent (GED, etc.) to demonstrate a basic level of education.
* Age: There's no upper age limit for college attendance. Many colleges have a significant population of non-traditional students (older than the typical 18-22 year old).
* Academic performance: Colleges look at high school GPA, standardized test scores (SAT/ACT, although many colleges are test-optional or test-blind now), and sometimes class rank to assess academic readiness.
* Financial resources: College can be expensive. Students need to demonstrate the ability to pay tuition, fees, room and board, or secure financial aid (loans, grants, scholarships).
* Immigration status: Citizens and permanent residents of a country are generally eligible. However, the rules for international students are different and often more complex, involving visas and demonstrating financial capability.
* Legal background: While having a criminal record doesn't automatically disqualify someone, it might affect their admission chances depending on the severity and nature of the crime and the college's policies.
* Health and disabilities: Colleges are required by law in many countries (like the USA under the Americans with Disabilities Act) to provide reasonable accommodations for students with disabilities.
* Specific college requirements: Each college has its own specific admission requirements and processes. Some may be more selective than others, based on academic standards, special programs, or other criteria.
In short, while there isn't a strict "who" that *can't* attend college, there are many factors that influence whether someone *will* be admitted. The process is usually competitive and requires meeting certain academic and financial benchmarks.