Strange....I'm pushing 60 and I have never had this problem. Maybe you and your young friends should quit looking at porn and start looking at themselves(gasp!!)
Many younger women do not feel the sense of obligation to please their man as might have been in the past. Its a totally different dynamic. Most young people work far more hours than previous generations did. Most friends and myself easily work 50 - 70 hours per week, where the old standard was 40.