Traditionalism is about MORE than the mass.
Much more.
It's also about doctrine, belief (internal adherence and external profession), piety, spirituality, and living more than superficially the Traditional liturgical seasons.
It's about knowing WHY we believe as we do.
It's about understanding and assenting to the fundamental superiority of the Traditional Mass, with its vertical spirituality ordered to mankind's obedient relationship to God, as His subjects. We should know these truths well enough to be able to explain them to other Catholics and non-Catholics.
It's about a conscious hunger and dependency on all of that, which should permeate our identity.
Traditional Catholicism is not about a patchwork of beliefs and practices -- some from the N.O., some from Traditional Orders -- but a seamless identity.
Simply because of age, most trads of today were poorly catechized as children and adolescents. Those in the best position are the ones who grew up with genuine Tradition and excellent catechesis, both, and have remained traditional. (Lots of trad-trained elderly folks are N.O.)
If a trad was fortunate enough to convert from outside the faith through a traditionally trained and formed priest, their catechesis is probably better than someone who went simply from the almost non-existent catechesis in the N.O. to attending the TLM, rather than actually learning about Tradition.
Trad priests should actually insist on examining their parishioners or flocks as to their level of knowledge, and those needing catechesis should be required to attend, under his supervision and direction. JMO.