They were better off being left in dreams, because there you never have to actually think of the consequences.

Like Star Trek holodecks. They seem amazing at first, but only because the weirdest it ever got was a sweaty Lt. Barclay, a creepy Cmdr. LaForge, and a safe-for-TV sleazeball named Quark.

In reality, if you could "jack in" to a self-controlled Matrix, or walk onto a holodeck and make anything you wanted feel real, it would be 24/7, 100% the unhealthiest invention since the nuclear weapon.