We must respect historical oral tradition. As well as theological opinion, and because of the importance of who St. Joseph is, this touches on, if not is a part of theological discourse.
Proof of "historical oral tradition", please?
Theological opinion is still just opinion.
The Protoevangelium of James, written around 140-170AD, quotes St. Joseph as saying he's an "old man" and Our Lady a "young girl".
This is pretty old historical tradition and has been influential in shaping Catholic traditions and beliefs.
However, it was condemned as a canonical text and excluded from the biblical canon by Church officials and councils because it contains legendary material and artistic embellishments not supported by canonical scripture.
So, be careful what you call on as historical tradition.