Am I really spoiled?

I’m only 16 but I’ve run into a financial issue. And before you say I need to get a job, the problem with that is transportation. I live in a small town and the nearest city with available jobs is 30 minutes away.

My parents can’t drive me, my friends won’t drive me, I don’t have any family except my parents, no public transport, and obviously no vehicle.
I asked my parents for one, even a cheap one, but they said not until graduation.

So basically I got $300 for Christmas because my parents ordered a new lens for my camera as a present, but it was out of stock, so they gave me the money for when it’s available to order again.
That was the entire reason for the money.

But I reminded them that I have gym this approaching semester and that my gym shoes that I’ve had since 7th grade are now too small. I also need track shorts because only two of my pairs actually fit. We don’t have a gym uniform. So I need these things.

I thought they would see it as a school expense, but (they haven’t said no yet) it looks like they’re expecting me to use my camera lens money to buy my gym clothes.

This is frustrating because the money was a gift intended to buy ONLY the lens that was out of stock.
And I really need the lens as photography is basically the only hobby I have and it keeps me sane.

Several people have told me that I’m acting spoiled, that I need to use the Christmas money to buy my sneakers and to stop being a brat.

But I NEVER ask my parents for anything. Ever. Everything I have I have purchased myself, minus my computer which was a surprise because I saved up for it myself, but they ended up buying it for me.