601
YouTube is now flagging accounts on Premium family plans that aren't in the same household
(www.androidpolice.com)
if this policy is implemented. the easiest thing for noobs will be get a Chinese phone without certification from Google https://storage.googleapis.com/play_public/supported_devices.html like huawei (you can get a GMS support with emulator like Gbox)
as long as your phone have GMS preinstalled and listed under Google certification. this will affect you. So, Chinese phone without GMS is fine.