anne....I am able to appreciate what you are saying and am inclined to agree with you.
At the moment there are three sub-categories in 'Family' ( Family life; Parenting; and, Pregnancy.) The question therefore is "Are they needed when one main heading would suffice.?" To which I would reply "No".
A further example of there being a no need situation for so many divisions of a topic is 'Quizzes & Puzzles'. Sunday seems to be the day that many folk require help with their Crosswords and, whilst there is a sub-category labelled 'Crosswords', most people post under the main heading.
It be interesting to see if the Ed comments.
Ron.