This isn’t a fair comparison, and you have to be arguing in bad faith to say this.
I have never seen someone pull out a gun, tweak out and rip out the hair of the girl sitting in front of them, or shit themselves, on an elevator. I have seen all of these on public transport in Seattle.
From another city, my younger brother was on the L in Chicago when a gun went off. Someone shot into the ceiling, no one got hurt, but holy hell idk if I could ride after that.
I still like the light rail in Seattle and am a massive supporter of public transport, but I understand people who won’t take it because of the psychological threats.
Elevators tend to be restricted to a specific group of people (inhabitants, customers, employees, etc.) in a way that public transport is not. If an elevator smells like urine, has suspicious stains or trash, chances are I'd look for an alternative. But it just so happens that the elevators I come across tend to be clean, unlike the public transport.
And I say this as someone who still takes public transport a lot, but it's increasingly less comfortable.
Not GP, but I certainly don't look forward to them. They are also much shorter duration experiences, and I can probably count one one hand the number of times I have shared an elevator with someone tweaking or shitting themselves, vs. the every day experience of seeing that on the bus.