How do I make a PSN account on my phone?
How do I set up a new PSN account on PS4?
Can you play PS4 without an account?
Yes you can, you need the PS plus subscription to play online multiplayer. you have many single player games do not worry. but it is more fun to play game with your friends so get the subscription.
Can you have 2 PlayStation accounts?
You can have multiple accounts on one PS4, all accounts have their own PSN ID, game saves, etc. If one account has PS+, all the accounts can play online and all accounts on the console will have access to any PS+ games purchased by the subbed account.