Of the young people in my SSPX parish, some of whom are even parents of teenagers, I do not see many that will last as "traditionalist" for very long (and you can forget about their children). We are living in 1965 all over again, in every respect. The traditionalists of the future will come from the world.
I can relate, LT...
When I grew up (born in 1975), we were fighting for truth and resisting all the changes in our novus ordo church. My folks were always intent on letting us know WHY we left the NO, and WHY we could never go back. It was discussed at length, on many occasions. There were many Sundays, and Holy Days we had no access to the sacraments, but Dad always told us it was part of the greater sacrifice. On those days we could not attend Mass, we read the Mass and prayed a rosary. It was tough at times, but I always understood WHY we were doing what we were doing.
I've had the same discussion with our 12 children for over 26 years now. I don't see those conversations happening anymore...the teenagers at our local SSPX chapel have NO idea why they attend mass at the SSPX chapel versus the local NO chapel. The fight for truth and sacrifice is fading, and sadly it will continue to be passed on to the next generation of "traditionalists".