Old Fashioned gal...or maybe just getting old?

Lately, I've been semi-seriously considering changing over my entire work wardrobe from mostly slacks and tops and a few dresses and skirts to all dresses.  I have some really cute dresses that hide my womanly imperfections that come naturally after having three children in less than four years.  These same dresses also seem to highlight my good points.  I can still manage a perky rack with the right bra and my legs are pretty killer from the mid-thigh down.  I have been able to find dresses that don't need to be ironed and can be washed at home and don't need to be dry-cleaned.  When I plan my work outfit the night before and choose a dress for the next day, I get a little excited about the fact that I just have to put on one article of outer clothing and I don't have to worry about matching a top, slacks, socks, shoes, AND accessories.  I just have to accessorize and choose shoes (and maybe nylons and a slip, depending on the dress).  So, I've been ruminating on this and while I've been considering the wardrobe change, I've also been a little introspective about all this.  Am I feeling this way about clothes because I'm getting old?  Because deep down in my secret heart, I'm a little old-fashioned and sometimes wish I'd been a 1950's housewife? 

Or, am I just trying to save time in the morning (read: I'm lazy)?