Well, going to bring this up again.
If there are enough players (well, we need at least 4), we can play at Tenhou’s custom lobbys.
They are easy and free to create. And as long as at least 1 game is being played per day there it won’t be deleted.
…And if it is deleted, we can just create another one.
Also, Riichi-Mahjong does look intimidating when you know no rules, but its not that hard to get used to. Hard to master, though. On tenhou the software itself does all of the math, wall-bulding, and other similar stuff. There is no way to get chombo, so even total newbies can get used to the game fast.
If anyone who has no experience with game is interested in learning I think that any of the actual players would be glad to give you a couple of advises and play an educational game with you.