Unpleasant questions are being raised about Mother's Day. Is this day necessary? . . . Isn't it bad public policy? . . . No politician with half his senses, which a majority of politicians have, is likely to vote for its abolition, however. As a class, mothers are tender and loving, but as a voting bloc they would not hesitate for an instant to pull the seat out from under any Congressman who suggests that Mother is not entitled to a box of chocolates each year in the middle of May.