K/F- I don't think you have to apologise for anything here, if someone is comfortable with what they are using and they are 'grown ups' then they should use it, after all they are the ones who suffer the consequences if they are wrong, how else do we learn, we take advice and move on from there, sometimes forward sometimes back, gee I do it all the time and then beat myself up!!
I have an acquaintance who will not breathe unless someone else recommends it, so all he does is breathe