At that level it really depends. Only the working officials know the particulars, time & score, abilities of both teams, what's good for that game...

#1. You said competitive, so I'd probably call it & give a brief explanation (NOT a clinic - 10 seconds or less) to the offender about what happened & how to avoid it in the future. Coaches, ADs & parents love that as the kids are still in the learning phase.

#2 Why not let the kid set up properly? It's not like they were completely OOB & stepped onto the court... plus you never had a count going. I'm passing on that too.