Nothing of the kind. Eden is an image of eternal infancy, therefore toxic to healthy human functioning. To long for that permanent dependency is perhaps understandable, but far from healthy. It reflects permanently impaired consciousness.
Adulthood is exactly an expansion of consciousness, btw.
But not necessarily. Another, not unique to me, though I don't have sources readily available, is that it amounts to freedom and, as you say, new consciousness. As for sex, innocent or otherwise, I meant only that there is no mention of any activity of that kind until after the expulsion. Of course not.