I am in a similar situation. I lost my wife suddenly and between survivor benefits and life insurance I have been able to stay at home (just over a year so far) and care for our 2 children. I'm 43. My wife and I had a wonderful marriage of 15yrs (plus a 5 year courtship) and were still very much in love. I'm not sure we were loving our respective careers and we both were saving madly to ER at 55.
I know there aren't any guarantees attached to tomorrow, but still it's a bitter pill to swallow watching so many long planned for dreams go away in an instant (as I'm sure we're all reminded of by Katrina).
Even given my own profound grief (an exhausting state), 2 grieving preteens (and all their associated needs), a house to keep together and several pets, people still ask..."so, when are you going back to work?", or..."what DO you do all day?" Yesterday someone asked me if I was retiring early, I answered that I wasn't sure that raising two kids alone while keeping a house together was my idea of "retirement". Its a full time commitment (that is much more important than my old job). In most cases I just say that I and my kids are fortunate that I am able to stay at home for "awhile" and time will tell with the work thing. I think that says all they need to know of our financial situation.
If staying home allows you to get done what needs to be done and most importantly gives you quality time with your loved ones, you should do it and be commended. I know I would be a completely different animal (as would my kids) if I had to pick them up at the end of a long workday, tired and grumpy, to take them out to another carry-out meal followed by grocery shopping, laundry, errand running, lawn mowing, snow blowing, bill paying...etc...etc.
I have a whole new appreciation of single, working parents and all they do.