Music Sync

Those subscriptions are optional if you want to keep ALL your music in the cloud and always accessible to all your devices. That has nothing to do with just syncing your library from Mac to iPhone.

Learn how to sync music, movies, and more using your Mac or PC:

https://support.apple.com/en-us/HT201253

If you need more help after reading the above, tell us what device models and OS versions do you have and how are you trying to sync now?

No, you don't have to pay.

Connect your device to your Mac and use either the iTunes app or the Finder (depending on which version of macOS you have) to sync, just as you always could.

You're welcome.