Get your Stop the Bleed certification in addition to CPR/FA https://stopthebleed.com/training-and-instructor-locator/
Yes! Even if you can't own a gun for legal/moral/mental health reasons, you can still do training like this! If you're not going to be armed, you can at least make a field medic of yourself. And then, even without a gun, you could be immensely valuable to the cause.
Even if you are in that (rather misguided) camp, there are better alternatives. Specifically, a grip safety. Safety automatically disengaged as long as you're holding the gun properly. Can't 'forget' to do that!
And, yes, there are good, modern designs that use grip safeties. The Springfield XD line, for example. (Those models also require a trigger pull for disassembly, though. Is it that hard to include some kind of decocker?)