Re: I opened a dojo.
A word of advice... don't call it a dojo. Call it anything but... call it a get-together experimentation session... a workout... playtime... anything but. That way there is no expectation of you as someone who might be in a teaching capacity or the expectation that you have something or nothing to teach. Welcome all and any who wish to workout with you... and learn from each other.
All the best!