AndreiKrylov wrote:Yes if people do not care about their back, shoulders etc. but just want to follow tradition - yes it is fine!
If they don't want to play longer and to practice longer and with more results and less stress then it is fine !
I know that you have had serious back problems, Andrei (degenerative disk disease) and have benefited greatly from playing in a standing position.
Not everyone has or will have that same problem if they play in a seated position. There are many people who have played seated for years without pain or injury.
One position (just like one size) does not fit all.
You have made some very good points in other threads about people maintaining their fitness so that they can play without pain and I agree with you totally about that.
Having the core strength to hold your body in whatever position you desire (whether standing or sitting) is very important to avoid injury.
A strong and fit body can endure staying in one position for longer than a body which has fundamental weaknesses, but no body should stay in one position (even standing) for excessive amounts of time.
Should someone have a problem sitting while playing, then surely they could try a standing position as you use. For myself, supporting the guitar with a strap and standing would be more stressful and ultimately more painful because I had a fractured vertebra (T6 mid back just below the shoulder blades) and surgery. Therefore, supporting the weight of the guitar on my leg in a seated position is a better and less painful solution for me and a position I can use for many hours of practice (even when I was still wearing a back brace).
As they say...."different strokes for different folks"
When the sun shines, bask.
Classical Guitar forever!