What is what age is senior citizen?

There's no single, universally agreed-upon age that defines a senior citizen. The age varies depending on the context:

• Government programs and benefits: In the United States, the most common age for eligibility for senior citizen programs and benefits (like Medicare and Social Security) is 65. However, some programs have different age thresholds, and some offer benefits at earlier ages for specific disabilities. Other countries have varying ages as well.

• Social definitions: Socially, the perception of "senior citizen" can fluctuate. While 65 is often used as a benchmark, many people consider individuals in their late 60s, 70s, or even 80s as seniors depending on their health, activity level, and individual circumstances. There's no hard and fast rule here.

• Retirement: Retirement age is also a variable factor. While the traditional retirement age is 65, many people retire earlier or later, making the association between retirement and senior status less clear-cut.

In short, while 65 is a frequently used and legally significant age for defining senior status in many contexts, it's important to remember that it's a guideline, not a rigid definition. The term "senior citizen" encompasses a broad range of ages and individual experiences.