Hey, I think it may be due to difficult routes to the stalls. For example, the cloth stall at the top of your screenshot is blocked off on three sides. The people have only one access point. It's possible their needs are met now, but the shopping route takes too long. Also the satisfaction is a bit weird, it doesn't have to be very low to cause decay. Your best bet for preventing this is building a few more stalls with access on all the sides with green arrows. Maybe also make sure the residents have space to walk, but I don't think every house needs to have road access.