I skipped MP3 and went direct to Ogg Vorbis. The MP3 patents had a bad smell about them. I was very sensitive to such smells back then when I was learning about the FSF et al.
I think I listened to maybe 12 MP3's many of which were horribly encoded 64K samples of the soundtrack of my fave cartoon series. Still have them but got some of them upgraded with the CD that came with the DVD release of that series.
I did have an MP3 player back in the early 2000's. It was a bit of plastic crap that cost £60 for my birthday, contained 2x 16MB MMC cards and held about all 12 of those songs. Worked fine till some dust killed it a few months later. Went straight back to CD then onto minidisc for convenience in the car (I got over the bad patent smell). Still use minidisc when on holiday. Most portable listening I do today is with a wonderful Sansa Clip I got a few years back. Batery almost never runs down, records from the built in FM radio should I want to record some talk radio and holds all my podcasts I've listened to for the last few years. Its tiby and dust can barely touch the innards!
As for streaming, thats for the VOD "TV channels" called netflix and iplayer et-al. I do have amazon music on my phone but thats mostly to help blot out the horrible noise of kiss FM playing in my office should I leave my sana in the car. To be honest my smartphone has better things to do than constanly stream expensinve data packets draining its aging battery. I need the power to play ingres and pokemon go or sell a bit of my bitcoins. Also it runs my homegrown location logging app nicely.