Baby Boomers are a massive generation and Social Security helps pay rent for a lot of them, in some ways it's a version of Section 8 housing but obviously with different tenants. 

You forgot to ask for his social security number, haha.

I also own a senior citizen concierge business so I’m an entrepreneur all the way through and through!

If they did, they would not have time to blast social media with these ads.  

This is an entrepreneur's game of cart before the horse and horse before the cart at once--place property under contract not knowing if the deal will happen and spending at-risk soft cost dollars. 

Social media outlets are one of the strongest currently available, also check out big internet players like google.

No reason to ever socialize with tenants.

If you're a young person who is 100% dedicated to being a real estate entrepreneur, pulling the money out could be decent seed capital for starting your investment business.If you're a bit older and just looking to grow your net worth, doing a self directed account and not taking the massive hit probably makes more sense.

And social media as for marketing or finding the people?

Entrepreneurs sometimes lose everything but they know how to get investors, how to start a business, etc.