In case you're looking for a sincere answer: being physically dependent on any otherwise unnecessary drug is a drag. You constantly have to seek it out to feel better. Even though caffeine is easily obtainable, I still have found it to be inconvenient when I've been at high levels of consumption. Plus, it does have health effects. It may not be so, but you'll likely feel a lot better without it.

I've gone cold turkey on caffeine a couple of times (takes me about a week of headaches, I'm not an especially heavy user), mainly because I was making hot drinks to avoid work out of boredom, so switched to ginger teas and such like.

Anyway, there doesn't appear to be consensus on whether coffee/tea drinking in moderate amounts is good or bad, but I've seen more suggestions that it's beneficial than otherwise. Any input to that?

No you aren't. Caffeine "withdrawals" are trivial and not life threatening at all.

Opiate withdrawal is generally not life threatening either.