Wow. This is awful. Hang in there Lilpanda99. I can’t imagine how hard it is to be losing your mom, let alone having others step in inappropriately and try to tell you and your dad that they know best.
I am sure like you said, its for good reason, but its certainly cruel and disrespectful. Just enjoy time with your mom and don’t let them get you down, nothing else you can do 🙁