I think what you are doing is the right move. You should wait until the unboarding process on steem becomes instant.
What I mean is that right now, if you tell your Youtube audience about steemit, many will want to sign up. They will do it and then they will have to wait 7 days or more to get confirmed. They will all forget everything about steem in those 7 days and won't ever comeback.
So let's wait until the steemit team releases an update and improves the signup process(which is due soon) and then you can start thinking about getting your audience over.