Ditto.. I feel exactly the same.. I feel like I have 'woken up' amd notice things in other peoples Rs, or how they are with their kids, setting bad examples in talking to them and its glaringly obvious.. particularly with peoples R's.. and you want to say something, but cant and anyway, where would you start to explain even if they asked? Its something you learn the hard way and cant be explained.. if they were aware enough to really ask you, then they would have realised for themselves already.
But yes, if only we had learnt this 2, 5, or 10 years ago!!!