RafaIsTheKingOfClay I was going to say the same. I've examined the science around mask wearing quite carefully. The problem is early on, we only had studies on flu and other contagious viruses to guide us and they don't behave exactly the same way as coronavirus. Many countries including the Czech Republic in Europe, as well as countries where mask-wearing is more common and considered polite not to infect others with anything (even a cold), such as in South Korea, just made them mandatory. Since then, science on mask wearing specifically to prevent corona is starting to emerge, though as lots of those countries have other better systems than the UK such as effective track and trace, it's really hard to know if it was the masks that made the difference, but the evidence is starting to suggest yes.
It's easier to establish a new social norm of mask wearing than wait til a second wave hits and then start it. People cotton on too late. If people were incredibly obedient and understood risk very well, it might be fine not to bother with masks right now, but in two months time it might be critical.
Personally, I wear a mask out of respect for all the people who have to go to work and have no choice, such as shop-workers. It's not a big deal to me though, and I don't care that most other people in my area are not wearing them, they also do things I wouldn't do in many other areas, I'd rather worry about my own personal responsibility and do what I think the science suggests is right.