@Dranza:
You're right, age doesn't directly correlate to strength but it certainly correlates to experience the longer you've been pirating the likelier that you're quite strong. Refer to BB, Doffy, Kuzan, Sakazuki, Shiki, Kuzan, Mihawk, Garp, Sengoku, Rayleigh, Shanks, Kizaru etc all 40+ all crazy strong. It's not always a key factor but there is a strong case for it.
Indeed, the older you are, the more likely you are to be strong.
However, it's a bit of a non-starter, since at the end of the day strength is impressive, regardless of age.
I mean look at one of the most infamous collectives in the One Piece World, The Eleven Supernovas.
11 pirates who's ages spanned across several decades, yet all were held with the same kind of esteem, regardless of age.
It's nice to be powerful AND young, but it really doesn't matter.
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@Dranza:
I'd prefer you keep your snarky comments to yourself I don't even know you…
If you're going to dish it out, learn to take it, buddy.
You're no slouch in the snarky comments department.