What, not ever? Let's come back in 5 years' time and see what's happened.
Perhaps we should mothball Crossrail, or heck, just fill the tunnels with concrete. They're never going to be used and it will just cost money to keep them open.
It does feel like there’s an agenda of some on this (and other) threads to talk down any potential recovery, and make predictions like “commuting is dead” etc. which I’d be willing to bet will look a little silly in five years’ time.
Lots of people will be back two, three or four days per week in due course, which will swell then numbers nicely beyond what we are currently seeing. Plus add to that more off peak travel, general population growth etc.
Meanwhile the hawks will look at the Luton and Cambridge busways and the Gosport unguided busway and will see (despite all the oppribium) what is effectively a railway but with minimal p'way costs, no signalling costs, no ASLEF, no RMT, all vehicles DOO, drivers paid a fraction of train drivers with no route knowledge needed so can be hired and up and running with a few weeks training, vehicles that cost a fraction of the cost of train vehicles and reliable end to end journey times at tube like frequencies with no need for bus replacement when there is engineering works as the buses are self diverting.
And they will proceed accordingly and do to the rail industry what Murdoch did to the print workers.
A case in point… Many of these predictions are the fantasies of their authors (and give an insight into their prejudices) rather than having any grounding in reality.