They can be both shimotsuki but not both directly related to ryuma you stupid shit
Zoro is a direct descendant
His family line goes straight up to ryuma
Kuinas does not
His family line goes straight up to ryuma
Kuinas does not
So if it was age why was zoro beating grown ups
Just like Kuina while being a kid could beat up grown ups AND Zoro...because she's older than Zoro
Because luffy had none of those things.
Luffy didn't have dna from Dragon and Garp?
Luffy didn't have the will of D?
Luffy wasn't the chosen one?