Why is your need for silence more important than other people's need to communicate?
Imagine trying to live your life where other people’s desires by default overrode you own.
Unfortunately that happens a lot; it's called the government.
It's about acknowledging it's a shared resource and respecting the space. No loud noises, no littering, no being drunk etc
These days people act like they're the only ones travelling
In classic British style they just try to influence and nudge people with campaigns and posters. That way the organisation doesn't have to deal with awkward accusations of racism etc
Don't be a douche.