Alexander had mixed feeling about the concept of 'Bliss trainers'.
On one hand, he felt that sexual education was certainly very important.
Without it, things would develop like they did in the European middle ages, where the nobles, who were especially sheltered from such things in childhood due to Christianity's emphasis on modesty and chastity, would have almost no idea of sex until marriage.
Sometimes they would be so sheltered that even men would be unaware of something as common as male masturbation.
And for the women, due to the oppressive societal structure of the time, some would even consider masturbation to be in the realm of fantasy.