I suspect that for many Jews that eventually shed their religion entirely they or their ancestors first passed through this phase or Lithuanian school. Or perhaps the Lithuanian school was overrepresented in the Jewish emigrants who came to the U.S. and Canada. Just speculating here.
It’s a good speculation. Hasidic Judaism is very much still entrenched in superstitions though they, too have lost some of them…it’s a process. It’s been a process through most of Judaism. And it’s been generational, too. Each generation shedding just a few more rituals, a few more superstitions, a few more traditions.
When I was young, our synagogue was strictly Orthodox Judaism…men sat separately from women, everyone kept strict kosher, Mikva baths. Now, the men and women sit together. Kosher basically just means no pork or shellfish, yarmulkes are worn in services but not necessarily after. The only Jews that still are very strictly Jewish are self isolated groups. You just can’t live in two worlds at the same time.
The branches of Judaism are not divided on any beliefs other than believing how much of the law you practice…so there’s a progression of law obedience between Hasidic, orthodox, conservative, reformed…unlike Christianity where every division is about the beliefs, not the practice. I certainly don’t hate my Jewish past…many parts of it I absolutely loved. It’s not hard to obey the laws, especially if you’ve grown up with them and I could still walk into an orthodox service and feel at home…even if I’m a bit shocked by men and women sitting together! For me, it was just a wee bit too hypocritical to remain within the faith when I no longer believed in God. For many, they feel more at home with their homies, so they stay within, doing the Sabbath maybe or just the holidays. That’s not much different than ex Christians that still celebrate Christmas and Easter even though they no longer believe in the reasons for the holidays. It’s what you grew up with!