I think trees in the fairway are ridiculous. I makes me think the architect ran out of ideas, so he said: "this hole is so bland, I'll leave a tree in the middle of the fairway to spice it up."
The only time they are remotely acceptable is when I can fly the trees. But that means they are in play for the high handicapers and most women, which again makes them
a ridiculous hazard.
If you want to require presicion with my tee ball, adding risk reward, use a bunker, not a tree. This allows the shorter hitters to clear it with their second shot, and puts the pressure on the A players' drive.