I (27M) have decided not to invest in my mom’s (57F) house, which is under her name but has always been our family home.
My sister (25F) moved out a year ago to live with her fiancé and isn’t contributing anything to the house, but my mom is now looking to me to help fix it up and make renovations.

The problem is, my mom and sister often make impulsive decisions about the house, like buying things for the kitchen without considering if they’re necessary or practical.

I’m more of a planner, and their approach clashes with mine.

Another big concern is that they frequently talk about selling the house. Since it’s legally my mom’s, I have no say in that decision. Even though they suggest the house “should stay with the son,as daughters move in with their husbands ” if they decide to sell, they can, and I’d have no recourse.

I don’t think it’s fair to invest my time and money into a house I don’t own and could lose at any time. When I explained this to them, they were furious and accused me of being selfish and overthinking.

TL;DR: I’ve refused to invest in my mom’s house because it’s not in my name, they make impulsive decisions, and they might sell it despite my efforts.

AITA?