Be afraid. Be very afraid.
The crux of the disagreement is that she effectively has no money of her own because her estate is strictly governed by others. I cannot agree that she effectively has no money of her own if she has a personal allowance in excess of 100k/year. It's been established that she does indeed possess this allowance. Now, if she has to beg each time she wants to spend it, or if every ten-dollar item needed the personal approval of her father, then I would say that fits the characterization of obscene control, but something like that
has not been established.
The "prisoner" etc stuff in this thread is just overblown rhetoric that short-circuits critical thinking.
I think a problem is that people believe this conservatorship is one of the worst things that could happen to her (or anyone), but before it took hold she was surrounded by grifters and out of control by the age of 26. In that unforgiving industry, performers are notorious for not making it to 28.
Most people only care about this case because it involves money and celebrity, two things that even well-adjusted people would have difficulty handling. There's also a huge difference between acquiring fame and riches later in life versus as a teenager, before full "executive function" develops.
Before the conservatorship, Spears had a credit card declined.
https://www.rollingstone.com/feature/the-tragedy-of-britney-spears-2-254735/
Her father has had the court remove these people from Spears' life. He wins restraining order after restraining order. He even manages to have the court curb former associates' First Amendment rights in that they can't even speak publicly about Spears.
I suspect the court believes there is a worse alternative to the conservatorship, and that was Spears' life before the conservatorship. But this is all forgotten in the United States of Amnesia. In the public consciousness, Spears' identity has been rebranded: Victim.