My son is 7 and started BJJ at 6. Been 15 months now. My daughter is 5 and started BJJ 5 months ago. Structured practices, knowledgeable instructor that works with them to build confidence. They go 3-4 days weekly and each practice always involves 15 minutes or so of live wrestling with others of similar skill sets. We’ll integrate striking and firearms into their training as they mature. Good on ya dad!