This is an inherit problem which goes beyond soccer, with no easy solution. American football players constantly take huge hits to the head, and their helmets although offer protection for the heads exterior, does not protect the internal jarring of the brain on a massive hit.
Professional hockey players went to the use of helmets many years ago, but still many head injuries occur.
Professional boxers take huge head shots from their very first match to their last, but most likely will never see them wearing head gear.
Mohamed Ali's Parkinson's was attributed to the heavy head shots he took during his career, especially from Joe Frazier.
To a lesser but not less dangerous extent, even with helmets, professional baseball players take on a 95 mile and hour fastball to their heads
which have ended many players careers.
Do we do away with all the contact sports alltogheter...unlikely, as there is too much money at stake, and in my opinion, as long as people are willing to pay big bucks to watch these sporting events, they will continue.
The average Joe who attends these events wants to get his moneys worth, and unfortunately does not understand nor care about the dangers involved. The way the spectators view it is the players get paid huge amounts of money, and those are the chances they take.