Many people initially learn how to fly fish from a friend or relative – as I did originally. However the understanding of the basic mechanics of casting is needed to allow one to fish proficiently in all weather conditions.
Many are the times that I have heard the words “I am a crap caster but I catch plenty of fish”.
Possibly this is true but surely if these people learnt how to cast well in all weather conditions they would cover more fish and they would therefore catch even more!
A qualified casting instructor will lead you through to proficiency (and beyond) quickly and painlessly and will also iron out any bad habits you may have acquired.