>How hard can it be for you?

maybe ask the 100 years of scientific publications about human behavior and addiction?

There are different intensities of addiction. Heroin addiction is not comparable to caffeine. And we each respond differently to addictive substances.

You are constructing very weird strawman here. Me and a lot of my friends have beer in the fridge or some stronger spirit on the shelf and yet they don't get drunk first thing in the morning before work. Similarly I don't observe them gulping liters of coffee at 10 pm. There are always people who have harder time moderating their addictions, but absolute majority seem to be able to control their caffeine consumption just fine.

> absolute majority seem to be able to control their caffeine consumption just fine.

According to whom? Data says otherwise

https://www.statista.com/chart/19524/cups-of-coffee-drunk-by...

"One cup" of coffee doesn't mean anything by itself since the effects depend on both genetics and tolerance. Do you have data that confirms that majority of adults either consume so much coffee that it causes unwanted side effects (sleep problems) or that they want to reduce their consumption and struggling to do so due to the dependency?

I usually consume two double espressos per day (both before noon) and don't have trouble falling asleep afterwards.

It's like website blockers for productivity: eventually you realize you can just undo the work you did and go back to business as usual, especially if there's an excuse ("I need this youtube video on software architecture for my research, so I'll just unblock youtube and...")