After staying with a friend I'm a bit concerned about her children aged 2 and 5. We stayed for 5 days in a guest house annexe. In that time I witnessed her letting her2 dcs get themselves up each day whilst she stayed in bed, prepare breakfast (ie raid cupboards) and eat total crap, play with the fire etc. She would then leave them unsupervised in garden with huge canal at back and dangerous fencing etc, for one to two hours while she'd have a nap or bath. Having a 3 year old and a 1 year old I found this completely shocking and really worrying. I ended up caring for them each morning/ when she wasn't about, but apparently this is normal whether we were there or not? Aibu to be quite concerned about this?