"You yourselves like living stones are being built up as a spiritual house, to be a holy priesthood, to offer spiritual sacrifices acceptable to God through Jesus Christ." I Peter 2:5
"But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light." I Peter 2:9
It's not that all believers might be priests. In fact, all are priests. It is not an option; God has decided it. Also, it is no chore, but rather a great privilege.
Despite this, the church is largely ignorant of the implications of the priesthood of all believers. Most local bodies function as if only a few are priests. The majority of the people are passive while the few do most of the work.
This reminds me of receiving a Christmas gift but then not opening it. Now, I've never done that and you probably haven't either. The church however both has and continues to do so. The priesthood of all believers is a stunning and unique gift that God has given to all his followers. God desires that we all live out the reality of what we are. Instead of ignoring this gift, let's vigorously embrace it and encourage our brothers and sisters to do so as well.