Please help 😐 read

I have such bad anxiety about this.

My son is 3months next weekend, we had been doing visitation mostly in our home up until my son’s dad got in an argument with my dad and he’s no longer allowed on our property. I also have accommodated every single effort of his to see our son up to this point. We came up with an agreement for supervised visits at his sisters because I have concerns of the safety of his home (ex druggie roommate who has lost his own child due to drug use, the dad has an alcohol issue, gun safety issues in home, etc) since this is just what we had agreed to for the time being until we go to mediation, I said I’d be open to adding visits with a 24 hour notice.

He asked in the beginning of the week if I could drop our son off at his house Saturday while his mom is visiting. I was firm in a public place or his sisters but then said I would bring him by. Mind you, I’ve seen his mom facilitate him getting trashed and she always saves his ass. I.e. last Christmas he was passed out by 8 when we needed to leave to get to an obligation with my family and she convinced me is wasn’t safe to drive home that night. Granted this would be mid morning and highly unlikely but still. Also he’s in the middle of moving so the safety is even more up in the air.

My question is, is it unreasonable to be firm that I must be there(keep in mind NEITHER my son’s dad or grandma really know him at this point. I could easily count the times they’ve seen him), or should I trust that his mom will make sure that he’s in line? The visit would only be 1.5hrs. Trying to find the line between my anxiety and genuine concern and don’t want to make arrangements that might make the court question whether I’m truly concerned. It worries the freaking heck out of me