One problem with that Jev is that to run events - even social days there is a requirement that all participants are insured. It would be a logistical nightmare to inspect everyones private insurance arrangements.
Councils also like to know that the insurance coverage is appro for Australian claims and that any litigation is not confined to offshore courts. (many insurers have those clauses)
Only way for the KSA's to be able to guarantee appro cover is to have one policy which can be sited and checked by the councils. They also, almost invariably, ask that they be listed on the policy specifically as parties of limited liability acknowledged by the policy.
Beach access is inevitably going revolve around the need for councils to be assured that ALL kiters on the beach are suitably insured. A single policy Aust. wide will be the only acceptable option to the powers that be.
Good logical thinking Jev but just not possible.
I really cant see why this issue creates such angst. The AKSA is now a confederation of all state KSA's administered by a board of one volunteer rep per state. The states use the AKSA to combine forces on any matter they control which can be best handled by a central body. The only outgoings of your money from AKSA is directly back to the states and to mutually agree agents engaged to undertake tasks which need to be handled efficiently and effectively by professionals who are not distracted by having limited time to act eg - sending out memberhip tags etc.
I was on the inside for a long long time and can assure everyone out there that whilst our state & national KSA's are young and evolving they are 100% member oriented. They are moving in very positive ways, under the control of every voluntary state c'tee and every voluntary state c'tee member, to do whatever is identified to make our sport as enjoyable & as safe & as free & as professionally administered as possible.
My personal opinion is that supporting your state KSA (and protecting yourself) should be a top priortiy of EVERY kiter. After all you are talking about one annual fee that is less than the cost one night out on the slops - way less than for most of us

.
Its a no-brainer.