The risk and need for security
greatly depends where you live and cruise
I rarely lock my boat, although my home marina has a locked gate. Never had a problem.
I've never locked my house in Australia
in the past 15 years. I'm not even sure if I still have keys for the doors. Again - never a problem.
Currently, I do rotational work in Iraq, I'm posting
this from my office which is surrounded by 18 foot high concrete tee walls, topped with concertina (razor) wire. This is then surrounded by more fencing, CCTV cameras, floodlights, trenches, lookout towers, guardhouses, search bays with sniffer dogs
etc. I have a hardened bunker which is RPG proof behind my office, a well armed & trained ex-Canadian special forces guy in the room next door, and plenty of heavy backup power minutes away.
I feel much safer when I get home with the doors unlocked, the windows open and not a firearm in sight.