As an experienced flying instructor and examiner of airmen I'm rapidly losing confidence in present airline pilots.
Any right seater who admits that he/she would be unsafe doing a low fly by along an unobstructed runway surely needs more hands on experience and could hardly be trusted to do a landing or a balked approach.
The manoeuvre comes close to being a small segment of every approach and landing.
Any left seater who admits to a low fly by being unsafe under the circumstances please nominate your airline so that I can avoid same.