It is hard. There is no denying it. A lot of people are shy, and some of them are 100 % ordinary too. I know at least a dozen boys who are too shy to talk to girls. I am almost certain that they won't even offer a handshake if they come across one.
This saga is happening since humans were born out of whatever. But some people are very shy and try not to reach out to gain a partner. Winning another person is no joke.