As a british person, i drink more tea than most do. But earlier in the year I cut back loads for whatever reason, I drunk decafe instead for a bit basically while having 1 cup (at work as they don't have decafe) instead of like 5 or 6 like usual over the day. I did well I think however I'm back on it now, back to normal tea after it didn't seem to affect me the way I wanted (as it while I was drinking a lot less, I didn't feel any different/healthier).

I do get headaches if I don't drink tea after about 24-48hrs or more.

I just don't like the taste of coffee.

Do you drink other sources of caffeine, like Mountain Dew  or Red Bull?

Those would be in the same class for this Detox.

Very rarely soda. Dont do energy drinks. I do drink ice tea though. Might be some caffeine in that.

Drink 10 - 20 a day, you should buy Matcha tea, expensive though.

Cups of coffee?

Yes, that's a cut down. Was in hospital for tests once because of BP, i used to drink way more.

Damn I am like you! I drink 3-4 cups per day because I love the taste so much.

After hearing this I might not ever give up. In fairness though, it's not like coffee is bad for you.

And here i was thinking I need to cut down on my 4 cups a daY!

I used to drink a lot of Pepsi Max until I didn't want that after taste in the morning anymore from whatever sweetener they put in there. I didn't notice any caffeine withdrawal yet I still drink a cup of coffee every day and tea.
Diet soft drinks are the worst for caffeine.