Most modern PC hardware is built with large ground planes and a few and resistors and diodes that will handle the average jolt from ESD. That's why you really don't hear about it nowadays. Back in the 80's, and 90's it was constantly talked about. Other than being a little cautious about how you handle a CPU or stick of RAM, pretty much everything else should be able to handle a brief moment of a few thousand volts. It really isn't something to go out of your way to deal with on modern rigs.
I'm not suggesting anybody throw on wool socks, dance a jig on shag rug carpet in a dry room and start touching your motherboard or video card. Just pointing out that wrist straps and esd mats are kinda overkill for building modern rigs.
I do use them, but only when I'm at my electronics workbench and building, modding, or repairing some gadget or old computer/console. Infact I have a home made heavy ground station made from six, half inch copper rods, that are six feet long and buried almost six feet into the ground, six inches apart. I connect to it for my crystal radio projects as well as electronics work. When not in use I have a knife switch connected inline with a lawnmower sparkplug. It's setup to help ground near strikes during electric storms in my workshop.
I even check my soldering stations for correct grounding every six months. I use a couple Hakko 951's, an FP 102, FM 202, and a pace desoldering station. I also use esd safe edsyn solderpult's for when I don't need to break out the desoldering station. Even my alcohol pump bottle is esd safe as are my flux bottles. So I'm not adverse to playing it safe. I just don't bother with it on new hardware as it really is more trouble than it's worth.