I'm quite the same too, i can drink coffee but personally won't choose it if there's other options in the menu, like coffee is not my go-to, u know what i mean, right? Especially in my place where the coffe beans are quite on the strong side (we have a variety of coffe beans that we grew and harvested here), so i can't really drink that type of black coffee...
And Tooru is just like my friends and family if it's abt coffee, they gotta drink their morning coffee and then their afternoon coffee and then their midnight coffee or else they can't function but honestly, they're actually FINE when they didn't get their daily-three-cups-of-coffee in like days or sum sometimes they just wanna be "cool" abt it cause everyone doing the same shit, they follow that and at some point it's almost like a "reflex" for them to order something like ice americano with 4 shots espresso or sum like that

"no, he just acts like he's all that"
and damn right he is, my grown ass still can't drink coffe cause it's too bitter for my cotton candy taste buds