In my country that's not the case, subscribing to Google Play Music does not grant access to YouTube Premium.
Also the "Google Play Music All Access" is 4.90 USD and YouTube Premium is 5.80 USD, not much of a difference.
Also a family pack for Play Music isn't available. And the Family Pack (5 members) for YouTube Premium is 8.69 USD, which is what I'm on and all slots are occupied, so it's obviously a better deal.
Also the "Google Play Music All Access" is 4.90 USD and YouTube Premium is 5.80 USD, not much of a difference.
Also a family pack for Play Music isn't available. And the Family Pack (5 members) for YouTube Premium is 8.69 USD, which is what I'm on and all slots are occupied, so it's obviously a better deal.