Can you leave class D amps on and not ever turn them off?

Interesting thread. I'm using the trigger cables on my Wired 4 Sound mAMPs to power them on/off before/after each listening session. May try leaving them on for 24-hours to see how things go, but that sound pretty great with little to no warm-up time.

I'm running a Rogue Audio Pharaoh integrated. It's a hybrid- tube preamplifier and Class D power amplification. It also has two power switches. The front switch controls the preamplifier. The rear switch (meant to be left on at all times unless changing tubes or configuring the phono section) controls the Class D boards.

Transistors live longer when they're always ON.
They have life of up to 60k hours when ON and much shorter than OFF.
Electrolytic caps also benefit from being always ON except if under high temperatures. Leaving on even clas A/B amp isn't a problem if one does not dissipate excessive heat. The only now consideration is power line and if there's ever been an issue with lightning strikes. Than you will have to power down when leave home or at least when disaster is expected. There will be no surge protection of components if hit by lightning.
Class A solid state amps and tube amps always should be turned off when not attended.