Back when i was still drinking Starbucks’ coffee i always had to ask for not too hot or to pour some cold milk on top. I dont understand their fixation with lav

Back when i was still drinking Starbucks’ coffee i always had to ask for not too hot or to pour some cold milk on top. I dont understand their fixation with lava hot drinks. Perhaps to kill off any bacteria and viruses that may be lingering in their cups? Because it certainly doesnt taste good when it’s as hot as not to be able to drink it.