What even is a date

I have no idea what I’m going to say here and I don’t want to sound like I’m out of touch (but I really am out of touch so forgive me). So there’s this girl I invited to watch a movie, and I do kind of like her, and I do know that my parents are already okay with it (which isn’t a must but it’s appreciated because I generally trust their judgement), so we’ll go tomorrow, and see how it goes from there. But here’s the thing, my family will be there, my parents, my sibling, everyone will go to the movies. Now, I don’t intend to be romantic, I simply invited her as a friend, should I be intentional and say I’d like something serious already? There is nothing wrong with that. I also know she likes my parents, and would happily chat with my mom forever. I get kinda embarrased about it. Basically, she’s kind of a childhood friend I only met for like a month before she moved elsewhere more than a decade ago, and somehow we live relatively close now, and it’s kind of like everything has been…