There's a lot of teachers of all kind (traditional, dance, music, workout), but I never heard of a teacher that teaches how to fuck.
Well someone might say "it's an instinct and you don't need to learn it" or "OB-gynes and doctors do that". But fucking is not only putting a cock into a pussy till you climax (that doesn't even include LGBTQIA+ community) and doctors gives advice only to couples.
I someone should teach you how to do it and how to do it right. "Watch some porn" some might say, but that's just a scripted play and you cannot guarantee satisfaction from just imitating it. Someone should teach it even to singles that's a newbie.
That would be a solution to unexpected pregnancy (safe sex is one too) and that would give anyone how you should do it for the first-time. How you will satisfy your partner (straight or not) whether you're just FUBUs, Friends-with-Benefits, couples, or just want to do it.
These teachers can be single, couple, or group depending on what they are teaching. They can teach actual (being the partner or guiding a couple) or online. these can also lessen the number of couples splitting because of lack of satisfaction and increase future meet ups(for newbies). And the discussion can be done here in this site.