This is an interesting topic for me.
My mom and brothers are coffee addicts and drink tons of it every day. My wife and dad don't drink it at all. I drink a cup of coffee 1-3 times a month on average.
I almost never drink soft drinks or other caffeinated beverages, so when I drink a strong cup of coffee every now and then (Chick-Fil-A's coffee comes to mind) I feel extremely uneasy, jittery, nervous, and so on. Not a good feeling at all. Usually when I do drink coffee, it's a high-quality pourover type from a hipster coffee shop. I don't have that problem with such high-quality coffee. But it's an occasional treat, not a daily thing I need to function properly. Outside of fancy coffee, when I do drink it, I get decaf - and even that gives me a bit of an undesirable buzz, sometimes. I don't understand how people think feeling this way is good or beneficial. I've never touched energy drinks.
Some of it probably comes down to one's particular biology - I wake up extremely fast. Even if, say, my alarm goes off when I'm completely asleep, I'm fully awake with 10-15 minutes maximum and have never felt the need for any stimulant to wake up. Perks of being a morning person, I guess.
Even though Mage is probably being obnoxious on purpose on the first page, I have noticed that a vast majority of my non-denominational Christian friends are utterly addicted to and obsessed with coffee beyond reason. It is a bit odd.
Over the past year I've taken to drinking Japanese green tea - the type with roasted rice flavor, powder, and leaves in the teabag. Tastes great, basically no caffeine, zero prep time, healthy, and cheap.