Crab is bang on and is part of every course I have been on and there is plenty of literature and real life incidents to learn from for people to stay current with the danger. The life shortening effect of going into cloud in a heli were drilled into me from early doors training back in the '90's - (civilian VFR only). When I'm asked, "how to get out of cloud?", the reponse is always, "don't get in the cloud".
Over the years there have been a few occasions when my poor planning and focus on getting the flight done has forced me to take corrective action. In all cases, going down, slowing down and turning back. I've not had to unplanned land yet, but I would if I needed to to save my arse!
I know there are parts of the world where the speed of (or unpredictable) weather change and terrain may rule out landing, but if flying in those regions, being IFR certified\current would seem a logical life saver.