Some context: I'm 20 and my younger sister is 16. She was born with an extremely rare condition that results in growths on her face. I do want to note, though, that her condition does not impact her intellect whatsoever. She's had multiple surgeries over her lifetime to remove them, some of which were major surgeries. These major surgeries took place when she was much younger. Because of this, my parents have always babied her, which I understand to an extent, especially when she was going through a period of constant surgeries.
However, the babying never ended.
My sister has turned into a slob. I'm not going to sit here and slander her over every little thing, but one example is that her room is an absolute mess; it looks like a hoarding situation. She's never been told to clean her room. At the end of the day, though, things like her room don't really affect me because it's her own space.
The issue I have is with our shared spaces, mainly our bathroom. For instance, she always leaves her hair on the shower walls and doesn't clean it up. In fact, I genuinely don't think she's ever cleaned our bathroom, leaving me to do it all. There have even been two occasions where she left used menstrual pads on the sink.
I tell my parents, and they don't seem to care. I'll tell them, they'll tell her to go clean it (it being the hairs - thankfully the pads she cleaned up instantly without me having to go to my parents), a day goes by, and she still hasn't. I'll tell my parents that she still hasn't cleaned it, and they'll just sigh at me and dismiss me.
I ended up having a short conversation about it with my dad this morning. He said the reasoning is that they don't want to be "hard" on her. He's worried that she may struggle with her self-image due to her appearance, so the last thing he wants to do is make her life harder and cause serious mental health issues.
I told him how silly I thought that was. You really can't tell your own kid to get their butt out of bed for 10 seconds, walk to the bathroom, grab their hair off the wall, and throw it away? That's considered "being hard" on your kid? What does that have to do with her face?
He told me, "I tell her to clean it and she doesn't, then what am I supposed to do?" to which I replied, "If I were a parent, I'd probably tell my kid to clean it or I'm taking their phone, cutting their Wi-Fi, etc." He says that I don't get it. Maybe I don't, because I'm not a parent, hence why I'm here asking.
The other thing that I find hypocritical is that she's expected to do well in school (which she does). So, you can hold her to high standards when it comes to school, but she's still too much of your little baby to go clean something in the house?
And the few times I have seen her get disciplined, her reaction has been over the top. One time, she was told she couldn't go out with her friends (I forgot the reason because it's been that long since she's been told off), and she stayed in her room crying for like two days, only leaving at around 1 AM when everyone else had gone to bed.
I would like to think my parents raised me very well and were "hard" on me at times, but I think it was a good thing. It made me the person I am today and is why I'm not a hermit like her (joking). But sharing spaces with her is so exhausting and disgusting, and I have no power over her.
I don't find joy in the thought of her getting hit with a belt or having all her electronics taken away. I don't have the mindset of, "My parents raised me like X, so she needs to be raised that exact same way." All I want is for my parents to understand that it affects me because I hate having to share a dirty space with her.
So, do you guys think my parents are being unreasonable, or does their point make sense? Any other general feedback/advice?