No kids, just the 2 of us. I didn't make my money via properties like focus1974, mine was via a business which got acquired by an US mnc. Our deal was one of the largest for our industry at that point of time but the record has been broken since.

Anyway, I cashed out and decided to retire. I don't know if this retirement is permanent yet. But I do realize that if you have sufficient base, it's possible to generate enough to not work very comfortably. I am not alone, I know many other not so old people like myself also taking this path.
Early retirement, on the other hand, is another set of challenges. Especially with no kids or major responsibilities. It's a dream for many, but self worth and feeling useless is a real issue.