Sorry, nonsense. I use the tube several times a day and it's a real rarity.
I do worry about the tube becoming a cacophony of phone calls, but really? Everyone message now anyway so I reckon that'll be a rarity too.
but, if I was mayor, I would be getting the transport police to have a word with phones on speakers.
I mean it depends on the line. Old northernline == 80db.
Elizabeth line, much quieter, so you're gonna hear it more
It is noticeable on buses and overground when people play things out load, but to be honest quite rare in the grand scheme of things.
Never been happier.
The clincher was noticing that the drivers themselves had access to ear defenders ... TFL said that that's because they're down there for extended periods of time. Sounds reasonable but I'm not buying that as a way out of not fixing the issue and exposing my ears to the worst bits of the tube.
Also has the ancillary benefits of blocking out those rare times (for me) when people do have their phone on speaker or are having a chat I'm uninterested in.