Some golfers don't slice every time, even though they don't rotate the club with their hands and wrists, because they hit the ball with their shoulders although using them is not a good way to square up the clubface. It is very inconsistent and leads to an outside-in swing path known as "coming over-the-top."
All bad golf movements are a reaction to how you swing the golf club, not the other way around. Let's talk once more about the grip. Most new to the game grip the club like you would grab a rope in a "tug of war" contest. They squeeze with their palms and the left hand usually is turned left and the right hand is usually turned right. This type of grip makes swinging the golf club very difficult so try to get the club into your fingers -- not your palms. This doesn't feel comfortable or as powerful, but you'll be able to rotate the club and generate speed.
You also want a slightly "strong" grip. So, put the left thumb on the right-hand side of the shaft -- not down the middle of the shaft. And try to hold the club with the fingers of the left hand. Then, put the right hand on the club and try to get the club in the fingers of the right hand -- especially the forefinger. If the club is in the fingers of the right hand, the baby finger should gently ride on top of the forefinger of the left hand. Which will help considerably in being able to rotate the golf club.
Hopefully, now you can be one of the 15 percent of golfers who understand how a "strong" or "weak" grip affects how a golf ball flies through the air. The stronger the grip, the more leverage you will have rotating the club, and the more you can close the clubface, thus leading to a hooked shot. The weaker your grip, the harder it is to rotate the clubface and the more likely you are to slice or fade the golf shot. A good grip and proper hand action leads to a good, consistent golf swing -- and will naturally solve the vast majority of other faults (swing problems) you might have.
Out of Bounds: No matter how clever and intelligent a golfer you think you are, there is always some dimwit, with a terrible swing, who's luckier than you.