That is mostly untenable for the average person. In the past a modest music budget was 1-2 albums a month plus the radio for discovery and word of mouth. That was it.
Streaming platforms give you access to practically everything that’s even remotely popular for the price of 1 album a month. If you want to consume a lot of music and especially a lot of new (to you) music, online streaming is one of your best options. And I know what sub I’m on, just addressing that you said “buy”.
There’s a lot of people in the world who do, in fact, like to eat.