Why do you say that?
I have just given you an example of how a stereotype can be formed. I hope that the fact I am choosing to post here shows I think it is worth the time and I know that useless crew would not bother to even read this forum.
Stereotypes reflect the cognitive bias of the person holding them and I have not stereotyped you at all; All I posted (and you are free to accept/reject my view) is to be careful of stereotyping your pax. There is a a risk of a self fulfilling prophecy.
The next time I board a BA aircraft, I will be sure to be positive in my thoughts about the crew, until they choose to show me I am wrong and I’m pleased to say that is not usually the case.