Because it's not about A/B it's about getting better. Because it's not about the parent who never accomplished anything athletically it's about your child growing at his own pace. I have seen many 5th grade A players fail miserably at the MS and HS levels and 5th grade B players bypass their A team club mates toward D1 commitments. Bottom line seek the best experience for your son and forget labeling A/B teams, your son should be saying his team, my team or our team.