Its good for your game
Planted for power
We live in a matrix of gravity, and over thousands of years our bodies have developed intricate systems that allow us to react to the G-force exerted on us. Thus we have an entire system that tells us where we are vs. the world.
If you weigh 170 pounds, you push on the Earth with 170 pounds of force and it pushes back with equal force. Given this equilibrium, you remain connected to the Earth using sensors in your feet that send information to your brain. Think of it as a circuit of Earth to feet to brain and back again. "Jumping in feet first" is not just an adage; it's a million years worth of wiring.
While the hands are your only connection to the golf club, your feet are your only connection to the ground, and as the old saying goes, "You can't fire a cannon from a canoe." Actually, you can, but the result would be more like firing a canoe from a cannon. Because coil and torque are the keys to power, if you take the ground out of play, your swing will be weak.
In ancient mythology Hercules fought the giant Antaeus, who gained all his power from his connection to the Earth. Hercules lifted the giant off the ground and held him aloft until Antaeus' power drained away. Disconnected as he was, Antaeus was helpless, and so are golfers who unplug from their ground. The game's best players feel that golf is played from the ground up.
Good golfers feel the swing with their feet, and it would behoove you to conceptualize and feel the swing with your feet first, rather than worrying about the clubhead or what your shoulders are doing or how your hands are working. Once you satisfy your ground connection, then integrate other keys into your golfing portfolio.
The best drill for getting the "ground-up" feeling is to hit balls in your bare feet.