London, increasingly common. I’d say a third of the time when I take the tube. Combine that with people making loud calls, 100% of the time. But I find people imposing their music or tiktok videos more obnoxious than a builder discussing his next job a bit loudly.

My daily train to/from London Bridge to West Croydon is borderline unbearable.

It's because phones speakers aren't loud enough to be audible over the sound of the tube itself!

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.