I have a 1 terabyte micro SD card in my (2022) phone that holds my entire music collection in flac format. This isn't the early 2000s and storage space hasn't been an issue for years. The only reason I see this not being more common is the mainstream phone manufacturers decided that you didn't need expandable storage and would rather pay an extra $100 for each measly 128gb of storage they care to give you.
My child will have each of his tracks be nearly half a gigabyte
I have a 1 terabyte micro SD card in my (2022) phone that holds my entire music collection in flac format. This isn't the early 2000s and storage space hasn't been an issue for years. The only reason I see this not being more common is the mainstream phone manufacturers decided that you didn't need expandable storage and would rather pay an extra $100 for each measly 128gb of storage they care to give you.