By that logic, radio (and tv for that matter) aren’t even necessary. Why tune in if you can just stream or pop in a CD or DVD or check your phone for alerts? One thing you should consider is that recorded music existed decades before most people even had access to a radio and yet over 100 years later almost 90% of the population still listens to it weekly.
Also, when people are barreling down a highway at 80 MPH, the last thing they should be doing is checking their phone screen for traffic alerts. That’s when live radio comes in very handy.
When kids in the 40’s started buying 78’s, radio was there. When they switched over to 45’s in the 50’’s, radio was there. And finally, after 8 track tapes were invented in the 60’s people said there was no more need for radio because you could literally bring your music library along with you on the road. Since then the technology has shifted to cassettes, CD’s, streaming, and now back to vinyl records.
And through all of those advancements over the years, one thing has remained constant. Radio. It was here before us, and I guarantee it’ll be here after us.