Don't fret, their fate need not be your own. We can all carve our own paths and establish our own priorities.
I work full time, and have an infant. Hubs is in grad school, he cooks and does laundry. We have a cleaning lady who comes 2x a month. Luckily we are both tidy, and both wary of clutter. I make sure everything (i mean everything) gets put away after baby is asleep.
I tackle one extra thing a night, whether its wash out the cutlery organizer, or disinfect the garbage cans, or cull old magazines.
Enroll your children in the chores. There is really no reason why they, even the younger one can't do these jobs. My MIL made a point of teaching her boys how to darn, iron, cook, clean, balance a check book, paint, chop wood, and feed the horses. She said she was intent on raising good men, not just good children.
I say there's little harm in having them lighten your load, plus they may learn a thing or two, and even thank you in the long run.