I'm being deliberately vague so don't scold me 
Person means well, is extremely generous, and loves the child very much. Has children of their own,however they do the following
- drive short distances without seat belts or car seats - I have seen their toddler standing up and bouncing on seats
- thinks that choking concerns are nonsense - scoffs at any suggestions that grapes, Haribo or those hard lollies may be hazardous.
- always smells of smoke though apparently smokes in garage
- very lax about holding children's hands when out and about - have seen this person walking beside a main street with their under 3 trailing five foot behind.
- absolutely no rules or regulations around sweets and takes great joy in stuffing children with sweets "don't tell mummy" etc
- swear and use some very non PC terms around kids.
- struggle to control the behaviour of their own children which can be quite rough.
When I write it down it seems obvious, but for a variety of boring reasons I'm going to have to be very firm in how I manage this person's expectations (lockdown aside) however neither do I want to cause a falling out, became they aren't a bad person in themselves