Can a senior citizen attend college as an undergrad when she only has GED?

Yes, a senior citizen with a GED can attend college as an undergraduate student. Many colleges and universities accept GED holders for undergraduate admission. The admission process may vary by institution, but generally, they will consider the GED equivalent to a high school diploma. The senior citizen may need to meet other admission requirements, such as submitting transcripts (if any further education was completed), letters of recommendation, or a personal essay.