I was also an adult in 2007 and saw people lose their homes and investors who overleveraged lose their investments when tenants didn't pay rent.

This also affecting small businesses in similar areas.This being a close subject of mine, I've personally lived in gang ridden neighborhoods and now in my adult-life see the same homes selling for over a million.Now I'm not knocking on the positive effects of reduced gang activity and creating safer neighborhoods through gentrification.But I am starting to see gentrification the same way automation is in the production & service industry.

Running an apartment complex is often more like adult daycare than managing a business.

Adult schools, vocational centers, junior colleges, and business colleges good places to look. 

Adults are expected to behave themselves.  

Working on a development deal where already 25 members signed up to develop a 50+ adult active community custom made for them.I can gather the finance and bring in the expertise for this development, looking for a partner who has the land.

I don't know about where you are, but in my world there are A LOT of Boomers sleeping with the phone on near the bed in case their teenage/young adult children have a need.

Adults without a college education outnumber those with college 2-1.  

Also, its great if you can get a parent to come to the showing of the property (not always possible) but its nice to have adult interaction.

The problem is the current generation of young adults have seen NOTHING but abundance of easy money and credit and life.