I am a psychologist.

This is based on my high tech dating experience of dating many people.

1. Perfect looking people have insecurity because they've six pack abs but their penis size isn't as big as the pornstar they saw last night.

These people don't wanna show anyone their nude body.

It's all time high because of Instagram models.

Even the people who look 9/10 feel insecure because of Instagram.

A person looking 9/10 when coupled with makeup, professionals photography, Photoshop, look out of the world.

2. STD/STI awareness is all time high. People don't wanna live with HIV/AIDS

Remember the news stories where guys would secretly remove the condom and go bareback without their partners knowing? Yes, people are afraid now.

3. Cameras everywhere. No one wants to be recorded while having sex and next day leaked to web just because they decided to breakup and someome got mad.

Taking it upto to social network and threatening with your follower count is a real thing!

Felt even a little bit of injustice? No worries, let the world decide who is wrong and post all photos, videos, communications and the smear campaign starts.

4. They are preparing for professional life and yes it's getting tougher. People have little money left after all neccessaties in life and no time.

5. Romantic interests don't stay around for long if they don't get sex from you by 2nd or 3rd date. So lots of people who wait for some special connection before they jump in bed, don't really find anyone.

Back in time people spent months to years courting a romantic interest before getting in bed. But now, people show interest for few days and if they don't get what they want, they are off to Tinder to look for someone who is more willing to have sex fast.

6. You need to be genetically gifted.

Used studio quality photos on Tinder with makeup on and Photoshop. Got bunch of folks interested? They ask you to snap your photo or they'll block you.
You quickly comply but guess what, you aren't genetically gifted so you aren't handsome/pretty as they thought. You got ghosted.

After a while you get pissed off by being treated like this and stop looking for anything related to love/sex.

Who wants to go through this humiliation again?

No one sees anything outside your face and body. People are comparing numbers against numbers. Personality will get a chance after you pass their aesthetic and number filters.

7. Sleeping with executives/managers is more rewarding so why sleep with same kind of people?

There is lots of sexual harrasment at companies. People either shutoff their sexual desires or sleep with executives to get ahead in their professional life. Now, this executives isn't in same age group so less young people get to have sex as a result.

8. Internet expanded the dating pool. Now, the people who want to have lots of sex can easily find another person with similar libido. This effectively decreases the number of people who will get to have sex with this person possessing high libido

9. People aren't perfect. But now, if you make a mistake in real life, someone who ask about your mistake on reddit and someone's else will label you as asshole or something then you are ghosted.

Edit: Not sure why my personal experience is being downvoted.