A growing number of people are virgins because they just do not have the energy to bring about a sexual relationship. For them, it is utterly exhausting to even try.
In most of the modern nations, the continual pressure and stress put on children to achieve, instead pushes many to exhaustion. Then, confronted with the near impossibility of having a successful career path like their parents, instead they face being burdened by deep academic debt for decades, when they should be raising a family.
Many of them are trying to be responsible, not marrying or having children because they know they cannot support them.
Others find sex to just be rote and dreary. Even their fantasies are drab.
A significant proportion of DUmmies, If you catch my drift.
Cheers!