To follow that up, how come Tiger Woods has had swing coaches for years. He has been arguably the best golfer of several generations, if not all-time. Who could hit a ball better than him over the last 10 years? Yet he trusted people to help him with his swing.
There have been several famous batting coaches in major league baseball over the years, yet they were never successful hitters in the majors.
I'm sure there are other examples.
a coach can teach mechanics sure....he can see you while your shooting, wich helps because you cant really look at yourself while playing.
we are talking about pool....not hitting a baseball or golfball pure wich rely's pretty much on solid mechanics....
Pool isn't all about mechanics, but then neither is golf or baseball. but golf and baseball is more mechanics oriented...the strokes are much more complicated than the one used for billiards, because a billiard stroke only uses the upper body, basically, the elbow, and wrist. your bridge hand doesn't move and your lower body doesn't move.
sure there are different strokes and applications for those strokes in the game of pool...an instructor thats never played the game cant show you that because he doesnt know how to shoot. A good player can demonstrate the shot and the application for you but,
You still have to get the feel for them yourself.....
That's why so many golfers struggle with putting and short game but are great off the tee and in fairways....they have to work on their short game more independently and learn to trust their instincts.
if you get lessons and then still only play an hour or two a week your not going to improve...your just wasting your money
if you don't get lessons and spend your money on table time at a pool hall for 6-10 hrs a week you will improve. You can achieve a high level of playing ability with out ever having any "professional paid instruction" and just watching people play and playing better opponents and picking their brains a little.
if you feel like you need lessons then get them by all means .
but
there is so much instinct and feel involved in pool that an instructor just cant help you with...
for a beginner or even a more seasoned player you can train your stroke to be straight in pool with an empty Jager bottle on the kitchen table.