People should master the basics before getting carried away with all the PRS stuff flying around right now. I've seen many people in square range competition talk the talk and then thunder in because they didn't master the basics.
That's not required at all.
Come out and shoot. Provided your equipment is prepared for such a shooting event, it's a great time with great people. It's written into the rule book that helping others is advised. No sport will grow unless it reaches more than the hardcore few.
I had zero PRS experience and I finished middle of the group both times. First with the only semi auto and .223 (AR-15), and the next with my bolt gun.
That said, I do have 1000's of rounds long range experience as a hobbyist, but that stuff can be taught easily. The real challenge is barricades, running your gear, and thinking. Some fitness, etc. It's just fun.
I highly suggest people to try. In any shooting discipline. I can't say I've had a bad experience doing pistol speed, long range, PRS, 3G, shotgun sporting clays, 5-stand and trap. I can't say I'm super involved in any specific one, but I've done competitions is many shooting disciplines and have had many great times.