Visitors & Coronavirus

So our doctor has said not to allow visitors when we come home and to basically keep up to date and have the same visitation policy as whatever the hospital’s is at any given time. Here’s my issue:

My in laws live about 10 minutes away. My FIL has a very aggressive brain tumor and has maybe a couple of months left. My MIL cares for him 24/7 and claims they’re being careful but still get takeout food constantly (maybe that’s me being overly cautious) and had their other adult children/spouses/kids stay for the weekend for Easter, saying it was okay because those other people had been quarantining too. They don’t think the virus is a huge deal, but they’re still being fairly cautious given my FIL’s condition.

My parents live about 2.5 hours away. My dad is an essential worker and my mom has been laid off. My grandparents live down the road from them and my brother and his wife live in my grandparents’ back yard (long story). My brother and his wife are both still working every day and traipsing all through my grandparents’ house when they come home. I know they can’t help/are lucky to still have to work but on top of that exposure my parents, brother, and grandparents are all still constantly going to each other’s houses like nothing has changed. They don’t think the virus is a big deal and have done very little to change their normal routines.

My husband and I have said no visitors for at least the first two weeks. We’re obviously going to stay updated with my doctor and with the pediatrician once we get to meet him/her. My concern is that eventually the doctor will say we can have SOME visitors, at which point I’d be comfortable with my in laws visiting but not my own parents, which is obviously going to cause drama. Is it bad to allow my in laws to visit but not my own parents considering my in laws have been pretty careful and my FIL may not have much time left, but not allow my parents since they’ve been so cavalier about everything? Even if I asked them to quarantine for two weeks, it’s not an option for them with my dad’s work and my brother/SIL working and living with my grandparents and honestly, they’ve lied to me about it before so I can’t really trust their definition of quarantine anyway.

Just curious for some outside opinions.