If it is thought that the time has not yet come for such municipal action, there is certainly plenty of opportunity for action by the parents, relatives and friends of young persons. The match-making proclivities of some mothers are matters of current jest: where subtly and wisely done they might better be taken seriously and held up as examples worthy of imitation. Formal "full dress" social functions for young people, where acquaintance is likely to be too perfunctory, should be discouraged, and should give place to informal dances, beach parties, house parties and the like, where boys and girls will have a chance to come to know each other, and, at the proper age, to fall in love. Let social stratification be not too rigid, yet maintained on the basis of intrinsic worth rather than solely on financial or social position. If parents will make it a matter of concern to give their boys and girls as many desirable acquaintances of the opposite sex as possible, and to give them opportunity for ripening these acquaintances, the problem of the improvement of sexual selection will be greatly helped. Young people from homes where such social advantages can not be given, or in large cities where home life is for most of them non-existent, must become the concern of the municipality, the churches, and every institution and organization that has the welfare of the community and the race at heart. To sum up this chapter, we have pointed out the importance of sexual selection, and shown that its eugenic action depends on young people having the proper ideals, and being able to live up to these ideals. Eugenists have in the past devoted themselves perhaps too exclusively to the inculcation of sound ideals, without giving adequate attention to the possibility of these high standards being acted upon. One of the greatest problems confronting eugenics is that of giving young people of marriageable age a greater range of choice. Much could be done by organized action; but it is one of the hopeful features of the problem that it can be handled in large part by intelligent individual action. If older people would make a conscious effort to help young people widen their circles of suitable acquaintances, they would make a valuable contribution to race betterment. CHAPTER XII INCREASING THE MARRIAGE RATE OF THE SUPERIOR No race can long survive unless it conforms to the principles of eugenics, and indisputably the chief requirement for race survival is that the superior part of the race should equal or surpass the inferior part in fecundity.