The divine commission was given to all. The New Testament makes no difference between laity as you call it and apostles. In fact Paul says that we are all a royal priesthood. We are called as believers to preach the gospel at all times and in all places. Sometimes we even need to use words to accomplish that.
Absolutely correct!
.
You need to re-read the account. Who was His audience...to whom was He speaking?
And, of course, you are using the modern definition of “royal priesthood”. Stay away from those enthusiasts and schwarmerei heretics like Jesus First.