If they were Born to be Single - They should have been Boys or they should have been Eunuchs, if they cannot Marry & Reproduce, then why do we need W0men at all ????
It is natural for any educated woman to use such phrases as they(women) feel convenient when alone or with someone.The inborn habits are a part of women.In modern age,women tend to be courteous even it is not warranted.
All these are only words and phrases with specific meaning, usable when necessary. We cannot say that only women use them. All persons, including men, who are not sure of themselves or happen to be diffident by nature, tend to use such weak words and phrases. it is important to all of us to avoid hazy, non-assertive speech and to pay more attention to be clear and balanced in expression.