[Aser]

Have you seen the F-35 cockpit? It's just one giant touchscreen.

[lostjohnny]

It has a large screen, but it's definitely not "just a giant touchscreen"

Some things are controlled by the helmet movements.

https://qph.fs.quoracdn.net/main-qimg-e6311865f9688fdb18cb69...

[galangalalgol]

And, sensibly, stuff you would use while dogfighting or landing are switches and buttons. That, and things that have to always work like the radio and artificial horizon.