Presumably you are an adult English speaker. Your parents obviously gave you a grandiose sense of yourself and little other training. Even my very young children understand the concepts "manners" and "using your words". When you are out and about in the world, you know, buying goods and services, you have no right to expect complete and total silence from any person you encounter or interact with because that's what you want or prefer. These people are doing their jobs and are often compelled by their employer to say certain things. Sure, I find it super annoying when the Starbucks cashier tries to upsell me a white chocolate chip walnut pumpkin spice cookie and a larger sized drink, but I do not wave my finger in the air and declare, "I expect silence, plebeian!" or make borderline sociopathic memes about how "Went to Starbucks, they didn't speak to me, so awesome." If you don't feel like you can bear to utter those terrible words please and thank you or respond with an actual word or phrase when someone speaks to you, stay the fuck home in your quiet no-talking-allowed house! Maybe if you don't feel like talking much while you get a haircut, you could endure a little small talk and put them at ease. Maybe the reason people talk a blue streak at you in the barber chair is because you sit there like some ignorant silent moron and they are uncomfortable and maybe fearing for their safety or worried you're gonna shoot up the place or show them your junk! Maybe all you assholes should get together and open a chain of silent barber shops. Or spend the $80 to $100 to have a barber come to your home to give you a private cut and explain your weird habit upfront. If you don't want to deal with 150 people behaving badly on a plane, please, get on your private jet. If you don't want any traffic on your commute, please, build a private road. But I'm guessing you're just a minor league shitlord and can't even afford the private haircut so guess what? When you get your haircut, people are going to talk to you, ask you questions about what you want, speak to you courteously while guiding you through payment, give you their employer-required rap about product, and maybe chitchat with you to find some tiny clue that you are an actual human instead of some tight-lipped, word withholding crazy Slingblade motherfucker.

People who move about in public and expect service workers to read their warped little minds and do their job without speaking are not only entitled nutjobs, but rude in disrespectful in very fundamental and basic ways.