Do you guys get annoyed when relatives/family-friends show up at your home unannounced?

Being born into a nuclear family, I really find it annoying when relatives regardless of how close they are to my family. Couldn't they just text 30mins prior so that we could be more presentable!? When you expect all kinds of formalities visiting someone's home, shouldn't you have the basic decency to ask if we're welcome or not,at least let them know of one's arrival? I feel like these people lack decency. What's your take on this?