[dang]

(I see how my wording "early childhood experience has a profound impact on adult life" could lead to this association, but that was imprecision on my part.)

Freud's insight wasn't about training children—it was about the psychological impact of early relational experience. What we now believe about developmental trauma, for example, or the idea that later relationships are patterned after what happened in one's family of origin—all of this, unless I'm mistaken, derives from Freud.

As smeeth was pointing out, it's easy to see things that Freud got wrong, and not so easy to see what he got right, because they have become so foundational that even Freud's staunchest critics take them for granted.