Absolutely. Having had a son who did club lacrosse all through high school, and a daughter that did basketball, soccer, and track, and both of them did BJJ (my son started at 4 and my daughter at 10), I can tell you the incidence of severe injury was exponentially greater in the sports outside of BJJ. During the years my kids were in the kids BJJ class, there was not one child who ever missed training due to an injury suffered in BJJ - not just mine, but literally no other kid in the group - , even when they competed. The same could not be said for the other sports. Seeing the number of 15/15/16 year olds go down with ACL injuries - especially in lacrosse and basketball - was stunning.