I hate that all the new trains only have sideways seating. I get travel sick travelling sideways. They don’t consider this. Where else in the world only has trains with sideways seating and not forwards/backwards seats?
A few that I remember: New York, Chicago, Hong Kong, Madrid, Glasgow, ...
Then fom a simple google search, Melbourne, Frankfurt, Sydney, Singapore, Moscow, Istanbul, ...there are many more.
Bear in mind that apart from Glasgow, all of the above have a far more generous structure gauge than the London deep tube, yet many high density metros are ordering new trains with all longitudonal seating, so there's nothing exceptional about LU seating provision and there's no reason to suspect that those of them deploying trains with all ongitudonal seating haven't duly considered the needs of their passengers to be carried in reasonable comfort and safety.