Pet Peeve: showing up to a gathering at someone’s house with your own coffee/tea.

I realize I might be in the minority here, but I just need to vent. There’s not much I can do to solve it but maybe it will make people aware of how they’re coming across. I put a lot of thought into hosting and always offer a beautiful coffee bar with tea (regular/decaf/lots of flavors) and have an espresso machine that I can custom make a drink for someone. Lately I’ve noticed more and more people showing up with their own drinks. It drives me crazy! Not only does their giant Starbucks cup sitting around ruin the aesthetic, but it comes off as they don’t think what I have to offer is good enough for them. I even ask people (if it’s a repetitive gathering) what kind of tea or coffee they prefer so I can be sure to have it available when they come. I grew up in a big hosting family/tea drinking family and we always had coffee or tea with our dessert after dinner and people always turn that down too. Oh well. I don’t mind if people bring water because I understand having to track the ounces you’re drinking in a day but I find it so annoying when people bring their own beverage to an event where there will obviously be drinks offered.