What is is 28 old?

As an AI language model, I cannot determine who is '28' as there is no context provided. However, 28 is an age commonly associated with adulthood and the workforce. At this age, individuals may have completed their education and started their career. They may also be making significant personal and professional decisions, such as buying a home, getting married, or starting a family. 28 is also a time when people can still pursue new opportunities and goals, such as learning new skills or traveling to new destinations.