only 0.01% of copperhead bites are fatal
https://www.reptileknowledge.com/reptile-pedia/how-many-people-survive-a-copperhead-bite
"Many people who get bitten by copperhead snakes assume they need antivenom to treat the bite, but that's not always the case, doctors say. In fact, Dr. Michael Beuhler, NC Poison Control's medical director, says antivenom is only sometimes necessary."
Plus you will go into shock when you recieve the bill.
In May of 2010, I was bitten on my left foot by one. It either only had one fang or the other fang slipped between my toes. I had walked out to my truck in my sock feet just after dark to roll the windows up before a storm and Wham..felt like someone had shot a nail from a nail gun in my foot. I knew immediately what it was and thought "Oh crap, what a thing to happen at this age!"
1. It hurt like the dickens when it happened. Had lots of injuries in my life but that was the most sudden sharpest pain I could remember & the effects were immediate. Light headedness, nausea...
2. Of course, it scared my wife that was sitting 20 yards away on the front porch 1/2 to death & she insisted I go to the ER, immediately (the 8 mile drive with her behind the wheel, running every stop sign and redlight was almost as bad as the bite) and they did keep me overnight, gave me fluids and antibiotics as well as a tetanus shot. We hadn't gone 1/2 mile and I realized better get my sock off soon or it would have to be cut off due to the swelling.
They explained that anti-venom is only used for copperheads in the event it's a very small child or someone that has been bitten in the neck or close to the heart.
This photo was taken in the ER, less than 20 minutes after it happened. Within 2 days, my leg was swollen to my lower thigh and most of it turned black. Other than that, no problems. (No, I did not kill the snake but saw it in the light from the front porch as it slithered off and I had seen plenty of them in years previous.) Copperheads and coral snakes are the only venomous serpents I had ever seen around the house. Timber rattlers are reputed to be common there but I never saw one. & of course, moccasins down by the ponds.
The swelling never really went back down in that foot and my left shoe/boot fits tighter than my right one and to make matters worse, when I had my quad bypass in 2015, that's the calf they pulled the vein from for the grafts. That left calf and foot has poor circulation now.
(yes I know I have ugly feet...ain't running no beauty contest here)