Porn Induced Erectile Dysfunction is growing fast. Personally, i think within 20 years 100% men won't be able to enjoy sex due to it.

Since women like what only older men can provide, younger men will have plenty of time to grow relying on porn, cutting the need for sex out of their life.

This means that the effort women demand in a relationship won't be balanced by the sexual offer anymore. Men will drop out of relationships due to inconvenient cost/benefit ratio. Relationships will look like a pointless nightmare.

Women will experience extremely low effort which will result in a deserted dating scene. This will push them to look for younger men, not yet adapted to porn, hoping to lock them early. The increased pressure will flip the gender roles.

Or not. Do you identify a force which goes against the ones i've described? If you're thinking of simps, forget history, times have changed, simps will have the upper hand due to market pressure

PS: breeding will be done via surrogate mothers, they're already down to 50k per pregnancy.