My parents had me when they were both 40 (so they’re on the verge of 70 now), so there is a big age gap for me as well —I definitely understand where you’re coming from though.
I think it’s all in context with where you are in life. When I was younger, 28 seemed much older and now that I am 28, I don’t feel like it’s that old. Perspective changes whenever your position changes.