Matthew who are you to say someone won't make it one generation?
Just my opinion, which I have a right to. My opinion is based on the dangers faced, knowledge of the modern world, and my observations over several decades of experience.
My argument for why a dogmatic home-aloner is dooming himself (or at least his children) to losing the Faith, comes from the words of St. Peter:
1 Peter 4:18
"And if the just man shall scarcely be saved, where shall the ungodly and the sinner appear?"
I think you could paraphrase this quote, and it would be quite accurate:
"If the Traditional Catholic attending Mass every Sunday shall scarcely be able to resist the World, where shall the home aloner appear?"
From what I can see, one's odds are not good.
If even chuch-going Trads IN GENERAL have such a hard time fighting the world, what chance does a person have who doesn't get a little Catholic doctrinal booster shot every Sunday, plus all the graces from the Mass and sacraments? He would get no good influences from a priest (sermons, confessional advice, etc.) plus no fellow-Catholics to be influenced by?
Not a good picture.
I don't think people realize what good is done on a weekly basis by their attendance at Mass. You don't see it, you don't feel it, but I guarantee you there is a cuмulative effect. A positive one if you attend Mass, and a negative one if you're missing Mass regularly. Either way, you gain/lose a little something every Sunday, which adds up over time.
I know a Trad personally who stopped going to Mass (nevermind why) and his life has gone steadily downhill since. But "he" is not the only one. I could list countless cases I've seen in my lifetime, with varying degrees of severity.