What is the world coming to?

I just put the kids in bed and Hannah came out to me and said, "there are two little kids on the trampoline. I mean little." I went out there to tell them they can't jump on the trampoline if we aren't out there. There was only one girl on then but she jumped off immediately when she saw me and took off to the house behind us. Meaning she already knew she shouldn't be on it. We've had to get on them before. Her two sisters, one older and one younger, came around the corner. They live down the street. The oldest one is in kindergarten and the youngest one is maybe two, probably not that old because last summer she wasn't walking yet. The oldest one was the only one dressed in clothes warm enough to be outside and even on a day like today, especially at 7 when the sun is down and temps are dropping, she should have had a coat on. The two younger girls were wearing only t-shirts. The baby didn't have undies or a diaper on. She was practically naked, no shoes or anything. These are the girls I have been giving Hannah's old clothes to since Kara outgrew Hannah. I just feel so bad for them. How can a parent just let their kids run around like that. I've seen the cops down there by their house more than once. Sad, sad situation.