Salvat, in a Lyons thesis (_La Depopulation de la France_, 1903), insists that the hygiene of pregnancy and the care of infants should form part of the subject of such lectures.

These subjects might well be left, however, to a somewhat later period.
Something is clearly needed beyond lectures on these matters.

It should be the business of the parents or other guardians of every adolescent youth and girl to arrange that, once at least at this period of life, there should be a private, personal interview with a medical man to afford an opportunity for a friendly and confidential talk concerning the main points of sexual hygiene.

The family doctor would be the best for this duty because he would be familiar with the personal temperament of the youth and the family tendencies.[37] In the case of girls a woman doctor would often be preferred.

Sex is properly a mystery; and to the unspoilt youth, it is instinctively so; except in an abstract and technical form it cannot properly form the subject of lectures.