Rattlers don't anymore either, almost nothing rattles anymore. If you look at the pic of the one in my shed I posted above it physically doesn't have rattles. We've killed three now that physically didn't have rattles. I don't know if coyotes or hogs are biting the tips off or they're evolving without rattles or what, but the ones with rattles don't rattle anymore either.
As for enjoying the outdoors we're just used to them. I guess kinda like a guy out West might just get used to the ticks in Idaho for spring bear. Generally just watch where you step and you tend to get a feel for where the type of terrain they frequent. Most of them don't want to bite you. My wife kicked a small one when she helped me pickup a generator to put in our generator shed. It was coiled up under the generator and we lifted it to walk it into the shed and she shuffled her feet walking and it took off hauling butt between us, easily could've bit either of us and thank God she didn't step on it to pin it down or I'm sure it would have. Some properties and areas are worse than others. One of my primary public places I hunt down here I've never seen one in 16+ years hunting every year with lots of boots on the ground. When we first started building our off grid cabin down on the coast we killed 10 of them over a weekend just in our camp area, we saw a few more on the dirt roads around but don't mess with the ones away from camp.