My boy's 20-year marriage just went out the window when his wife fell in love with a country singer 15 years her junior. Luckily the divorce was amicable and he still has his hide intact.
He started checking out the dating services on the Internet and some of the tales he tells me reinforces your opinion. The whole game has changed and I would not want to be in his shoes.
Sorry to hear about your son. Hopefully he moves on to better places and good luck to him and I od not envy him.
If I got divorced today I would not bother dating.