Huh? Is that you saying I am prejudiced because I am thinking that is what you are saying. Otherwise you are making no sense in the context of what we are talking about.

You found a helmet that you got to try on and it fit and you were able to walk out with it yet you have an issue with bike shops, really really really really really extremely super strange. I generally like a place I can go in and try on a crucial fit item and walk out with it. I try to go in with a good attitude and usually I get the same in kind and if not I don't go well the whole industry is bad I give them another chance (unless it was so abhorrently bad that I couldn't stand to go back) or I would at least recognize it was that one interaction and move on.

If I consistently had the same issues at different places I would first look inward and see if it was me because that is the commonality in those interactions and some people can be abrasive or have some quirk to them that just makes it hard for interaction with some other humans. I have a friend who is a milder case on the autism spectrum but has it none-the-less and he has some trouble interacting sometimes and it is not because he is a bad person or it is intentional it is just how his brain is wired. There are some individual places where people are just not nice or have some issues but those are individual stores not all the stores.