As somebody in my mid twenties, I primarily date people in their 30s for this exact reason. I need somebody mature with their shit a little more figured out. Dating people my own age can be fun, but they don't really have the maturity required to deal with somebody who's gone through as much trauma and mental illness as I have.

Case in point, my longest lasting relationship with somebody within 5 years of my age was 1 month long. My shortest lasting relationship with somebody older than me by more than that was 2 years.