I don't plan on it, I can barely recognise a golf club.
On the subject of handedness, I am ostensibly right-handed but use some tools either backwards (left-handed) or equally badly either way.
Generally I see plot points like left-handed golf clubs in the same light as most of the Sherlock Holmes' style observations. They're cute, but in any realistic sense all they can be is reason to look deeper into some aspect. They don't actually hold much, if any, credibility on their own. (I do enjoy the Sherlock Holmes stories, they're fun. But dog hair on the trousers or dirt on the fingernails? Yeah, right. Hang him! he's obviously the killer.)
I mostly give Sherlock and Poirot a bye on this sort of stuff by imagining that there were a dozen other things that led to the same conclusion, but they only bothered to mention the most obvious because full details would have been too boring to recite in the book. (Sounds logical to me
.)