By that logic, adult tax payers should expect to be able to use the pool at their local highschooler.
Not actually, because, as is pointed out in post #47, the key is "would normally attend" - At least here in Texas, it is (frighteningly - LOL) almost common sense. If a homeschooler is of "normal school age", and his parents pay taxes within or to a school district, said kid is permitted to take part in those extracurricular activities which would have been available to him/her if actually attending the school he/she would normally have attended if not being homeschooled.
There are caveats on "normal school age" but I don't know the details. Such caveats are in place, for example, to prevent those students who have not performed academically (for whatever reason), and were "held back" academically at any time, from playing, again for example, on the HS football team at the age of, say, 20, but because my kids were never subject to that concern, I'm really not familiar with the actual age rules.
Hope this clarifies my original post. Sometimes my tongue gets in front of my eyeteeth and I can't see what I'm saying - LOL!