What do I do about my girlfriends family? Am I being silly?

Grimraed
So everytime her grandparents have something going on. Like they are in the hospital for any reason what so ever, be it serious or not serious. She wants my girlfriend to drop everything and basically spend days with them. She's even told her to miss work before to do this and she's complied. It's just getting to a point where it's becoming too much for me. I understand if it's life threatening or they are in serious condition. However, it's even when they are stable and nothing is necessarily wrong. Like the doctors aren't even worried about them pulling through or dying.

Just today on her day off she went to see her grandma in the hospital. She probably got there around eleven or so. Her mom wants her to stay until six. Her grandmother is ok and there's no real risk of her dying. I just don't understand it. My girlfriend and I see it the same way. Go visit for sure, let them know you care about them. However, what is staying all day going to do? We aren't doctors. Us being there isn't going to heal them. Any advice ok what I should do?
Plus I feel like they don't care about her wellbeing or what she needs/wants. It's always all about them and their wants. She gets overwhelmed by this stuff and needs a distraction/break.

If I'm in the wrong, that's fine. My family has always handled things like I said. Visit but there's nothing you can accomplish by being there all day.
What do I do about my girlfriends family? Am I being silly?
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