#RPGaDAY2018 Day 8: How can we get more people playing?

Today is Day 8 and the questions is How can we get more people playing?

Big question really.
I just got back from Gen Con.  I saw a lot of families bringing in the next generation of gamers. But that is largely the current generation bring their kids.  So unless you are having kids, you are not helping this particular issue.

I saw an absolute ton of new gamers that appear to be attracted to RPGs from "Critical Role".  I can't tell how many times I heard "is this the game they use on Critical Role?" and then watching the same people drop $250+ on a game.  They are young, they have some disposable cash and are willing to learn.

The biggest way through is this.

We need to stop being a bunch of Gate-keeping dicks.

Seriously.  Everything from pointless edition wars to telling people they are playing "wrong" to telling fans of the game they are not really apart of the game.

Look. I get it, there is a badge of honor to be able to say "I played when the Satanic Panic was at it's height" or whatever.  I even do it.  But looking down on people that started after you or *gasp* don't give a fuck what you do should not be derided.  Don't like Dragonborn? Fine, don't play one.  But don't tell me or others they are somehow "doing D&D wrong" because they do. 

I have seen a lot of people come into this hobby.  And I have seen a lot leave because the gamers around them couldn't stop being dicks for ten minutes.  I saw it this last Gen Con in fact.