Another point --
My family is integrally Catholic. That is to say, our Catholicism is 7-days-a- week. You wouldn't be scandalized if you followed us home after Mass. The girls' dresses don't come off once we get home. They wear them all the time. We don't have a TV. We teach our kids the Faith from an early age. Our kids know their prayers. We don't eat meat on Friday -- both inside and outside of Lent. We attend Mass on all Sundays and Holy Days. And so forth.
And yet, my integrally Catholic family has very few friends at our SSPX chapel of 200+ people. Sure, there are some -- some acquaintances and those we get along with. But most people either live too far away and/or aren't interested in forming close friendships with us.
The million-dollar question: Why?
One might say that our Catholic family is a microcosm of the Catholic Faith. How many people are interested in becoming "estranged" from The World? Not many. We are certainly estranged from it -- which is why we have few friends. That's my theory, at least.
I'll admit -- I'm not a social butterfly and neither is my wife. So part of the problem is our own melancholic temperaments, and I'll admit that. But we're friendly to everyone, and we USED to be friends with 2 different young families there several years ago. So our introverted natures didn't stop us then! But they both moved away to St. Mary's, KS, and we haven't really had any friends there (in the same state of life, I mean) since.
Part of the problem is that my wife and I both *know* that some families just aren't that similar to our own. Either they send their kids to public school (that's a HUGE difference right there), both parents work, or something along those lines. It's hard for an orange to be friends with an apple. Human friendships have to be formed on something in common. The Faith is something, but if the entire rest of your life is 100% different -- then what?
Some people just aren't cut out to be friends. Very sad, but true. There is one family in particular that bothers me to no end, because we just don't get along. (My Irish heritage teaches me to be affable and get along with everyone. My father (R.I.P.) was that way.) Anyhow, I could list a dozen things we have in common, but our personalities just clash too much for some reason. And I'll admit there are differences, too, and I suppose those differences do outweigh the similarities.
It reminds me of trying to form friendships based on "we both have the same disease or disorder". Ok, now what? You're still just a stranger, even if we both have _____ Syndrome.
Also, it reminds me of trying to pair up young Trads for marriage. Sure, you both go to this particular Mass in Latin every Sunday. But beyond that? What are your lives like? Your family culture? Your interests? Your attitudes towards work/family roles/money/entertainment/TV/swimming/you name it? They could all be night & day different, even though you both go to the same church.