The sins of the flesh are bad, but they are the least bad of all sins. All the worst pleasures are purely spiritual: the pleasure of putting other pe… - C. S. Lewis

Of course God knew what would happen if they used their freedom the wrong way: apparently He thought it worth the risk.

"Don't you like a rather foggy day in a wood in autumn? You'll find we shall be perfectly warm sitting in the car."
Jane said she'd never heard of anyone liking fogs before but she didn't mind trying. All three got in.
"That's why Camilla and I got married, "said Denniston as they drove off. "We both like Weather. Not this or that kind of weather, but just Weather. It's a useful taste if one lives in England."
"How ever did you learn to do that, Mr. Denniston?" said Jane. "I don't think I should ever learn to like rain and snow."
"It's the other way round," said Denniston. "Everyone begins as a child by liking Weather. You learn the art of disliking it as you grow up. Noticed it on a snowy day? The grown-ups are all going about with long faces, but look at the children - and the dogs? They know what snow's made for."
"I'm sure I hated wet days as a child," said Jane.
"That's because the grown-ups kept you in," said Camilla. "Any child loves rain if it's allowed to go out and paddle about in it."

What seem our worst prayers may really be, in God's eyes, our best. Those, I mean, which are least supported by devotional feeling. For these may come from a deeper level than feeling. God sometimes seems to speak to us most intimately when he catches us, as it were, off our guard.