Agree, but many think that wearing the masks will stop them getting the virus, and that is not correct They may wll help others, and I have not said otherwise, but those that think they will be protected by wearing one, will be disappointed.
It is clear from here that there are many - shall we say 'misconceptions', about the various measures' intended effect. However this thread is specifically about the mandating of wearing masks to reduce the incidence of persons infecting others whilst using public transport. In that respect, the majority of wearers are fully aware of why masks are being worn (I.e. we are talking about passengers who will mostly be of working age). So as has been noticed in other countries* where the population has complied with requests, there is a case for those travelling in this country to do same.
Controlling (and eradicating) the virus is a national task which relies on the majority of people doing the right thing. Most will, - just as the majority of the population complied with the stay at home requests over 10 weeks, and so it will be on the wearing of face covering on public transport. Those objecting have four choices:
1) stay away (or be stopped when trying) from using public transport
2) if there is a genuine medical resonance for not being able to wear a mask, get verification from a GP
3) wear a mask
4) just keep splitting hairs here, - it won't change the rules but it might give them some self-satisfaction
* see post #285 from xydancer above