Well, what you said sounds pretty strange to me. I personally hate text messages and I find them very annoying and demanding. I would also never go out for a date with a boy who texted me instead of calling me... And I see no problem with talking on phone while on the bus. I don't mind that at all, if I meet a person I know at the bus I will talk to him, so I think talking on the phone on the bus is the same as talking with your friends on the bus. I'm happy Bulgarian people are not maniacs about such things and don't always follow some stupid rules, they still feel free. But I also don't like people who accept calls all the time. Even in class. This is stupid. But it's just as stupid to exchange text messages in class.
I think that texting will take a lot more time that calling so when you call you save time. It also sounds a lot more personal. I personally find texting rude and stupid, it's also inconvenient and boys who invite you for a date with a message lack the courage to call you.
Have you ever seen things this way?