Beer question

So I turned 21 the other month and I just recently started signing up for the local bar clubs such as our local moose club. I started on yuengling and now I’m really into Budweiser. My dad’s girlfriend made a smart comment about Budweiser the one day, my one buddy asked why I actually like Budweiser, and last night the bar tender asked if I was sure I wanted that and then mumbled shit under her breath as she walked away. It doesn’t really bother me. I’m not butthurt about it. I just don’t understand what the problem is. Is there something that Budweiser did maybe politically or something that I’m not aware of? Is there some sort of joke I’m missing out on? Like I said, it’s cool for now but after a while, Im not gonna wanna deal with someone making a comment every time I want a Budweiser.