The old debate about which is best for your children, "quantity time" or "quality time," shouldn’t be a debate at all. It’s not the quantity of time that you spend with your children, it's the quality that counts. Or is it?
That is a widely-quoted proverb which serves to reduce guilt in parents who are rarely at home. While the statement is true (a small amount of meaningful time with children is better than a longer period of less constructive interaction), who says that a working mother's evening time with her children is necessarily of greater quality than it would have been if she remained at home all day? Her fatigue would make the opposite more likely.
The real question is, why do we have to choose between the virtues of quantity versus quality? We won't accept that forced choice in any other area of our lives.
From Dr. Dobson's book Handbook of Family Advice.