I suspect because Apple decided you need to pay for it. Speculation about Apple policy decisions is prohibited here, it is a violation of the Terms of Service. They are providing you access, without purchasing, to their entire music library.
Hello,
To add to what Chris said:
None of us here work at Apple. So we are unsure what the thinking is behind these decisions. Or with anything.
You do get your first three months for free when you sign up for the first time.
Why aren't iPhones free?
Is the troll hungry?
Please do not feed the trolls.
This can't be a legitimate question.
Why isn't the Apple Music free?
