And all of the things you say aren't important (that other posters mentioned) are examples of some of the signs of parenting, child's needs, health, and welfare. The examples are ways to define it.
Respectfully. No, they aren't examples of the 'signs' of (I assume you meant "bad" ) parenting.
Lots of kids get nits. Rich kids, poor kids, many kids. Not just neglected kids. It's neglect if you don't --treat-- the lice.
Strippers aren't automatically bad parents. There's plenty of squeakily middle class women in the 'burbs with nice shiny houses, who know step-daddy is raping the kids and do nothing about it.. I just don't like assumptions made due to socioeconomics/sexual preferences.. etc. It irks me. Maybe I should sh about it, but .. it irks me.
eta: oh and messy rooms. DIRTY rooms with mold and old food and feces and dust = neglect. Mess, not so much.
They are not all 'signs' of neglectful parenting in themselves. IMO.
Now, the whole "dirty and bruised" thing? Shopping with no shoes? Getting in a car with a stranger? With your kids? Letting your child walk off with said stranger? Dragging your small kids around shops for hours and hours past a decent bedtime?
That's what I call cause for cries of "neglect".
Things sure were not great, and the kids were more than probably not cared for well at all.