I think probably what would be best and what most fields do is under a certain age then they must be supervised on the field. Some of the under 18 crowd (Duy is a great example) is more mature and a far better player than most of the over 18 crowd. I would imagine that the reality is that TAS if for no other reasons than insurance alone expects adult supervision under a certain age.
I think probably what sparks this debate is when a parent drops off their kid and thinks hey cheap daycare for the Saturday and that has happened at TAS here lately, it muddies the pool of players and you have alot of non hit calling, alot of taking your goggles off on the field. or walking around pointing guns with mags in outside the field. You honestly cant expect a 13 or 14 year old to always make grown up rational decisions which need to be made when you have a AEG capable of traveling at the high rate of speed we play at. My son is one of the younger players but he knows that if he does something stupid then 50+ people will witness some public child abuse
. Its my opinion that untested players under the age of 16 should be supervised by a parent or guardian, I personally cant imagine just dropping my kid off at a event such as an airsoft game and pick them up 8 hours later. Snakebites...Bee stings...allergic reaction...spider bite...broken bones....broken teeth...asthma, some of these things are life threatening. Who accepts responsibility when Johnny gets bee stung and goes into anaphyactic shock and cant tell us he is allergic to yellow jackets, which mall do we call to get ahold of his mom? By the time we find out it will be too late for him.
Throwing the whole hit calling, call of duty, blah blah out of it and just look at the safety aspects, all persons under a certain age should have an adult with them on the field for no other reason than what I have listed. I am a healthcare professional and have a pretty strong field medicine background, I can say with reasonable qualifications that if some of the above occurred, without knowing a pretty thorough medical history if a sentinel event happened the chances of getting in contact with the parent before tragedy happens is very slim.
TLDR version: Parents should accept responsibility and supervise their children, stop using TAS as a drop off daycare.