The Starbucks I’ve seen have got someone taking orders and collecting payment, someone else steaming milk by the gallon, someone else cranking out espresso as fast as they can, and someone else putting it all together and adding the carmel/whatever else.
An assembly line.
The only personalization is at the end when they put the drink up on the counter and yell out “Triple venti carmel chai macchiato with a double-shot for Bill” (or whatever). I find the whole operation silly.
And I’ll no more tip them for that than I tip the kid who takes my burger order.
That’s nothing. There’s just not enough parts there to make an assembly line.
None of that has anything to do with if you should tip them. That’s a matter of your own cheapness. Though I do think it’s funny people will spend that much money on coffee and then whine when anybody suggests they might throw in an extra buck.