Congrats freedomgirl, it's a big decision.
I did the same 4 years ago, leaving the police after 16 years. We don't have kids, and wanted to get away from the terrible English weather, and all that besides, so moved abroad.
I got the same responses as you from real happy envy, to 'what will you do all day...' accompanied by horror expression.
I can't tell you the joy I still get after 4 yrs, when in an evening knowing I don't have to go to nightshift, and in general doing exactly what we want.
I work part time for a wedding company ( a joy after the police ! ) and although leaving a well paid job was nerve wracking initially I don't regret an instant.
have fun with it - I thought I'd have loads of time for hobbies, but it's true what retired people say, they can't fit in what they want to do, and I've never been bored once.
The people who say to you 'what will you do all day' are either jealous, or have no imagination - you only have one life, so good for you and good luck .