Songs that are in MP3 format do not have studio quality sound. That MP3 format compresses them, makes songs sound artificially louder, and you lose some sounds from the studio quality version. You get the fullest sound experience when listening to lossless music from studio quality songs, not MP3. People usually listen to songs with the MP3 file format because that is cheaper and doesn't hog up much personal storage space in their devices. Not because they are wanting the full sound experience when listening to songs with lossless studio quality music. It is easier to download pirated MP3 songs rather than lossless music with FLAC, ALAC, or APE file formats for example.

Personally, I prefer lossless music with the fullest sound experience without that compression and artificial loudness my hypersensitive ears can detect. But I listen to lossy music when there are no other options. Because I know there are license agreements where some singers or musicians will only publicly release lossy music for legal reasons. Because I found a soundtrack album with exclusive songs exclusively on iTunes that were only lossy for example. Otherwise, I prefer losslessly digital music rather than C.D's, vinyls, cassette tapes, 8-track tapes, etc. that can distort the sound of songs from physical damage or dust. Because I would rather losslessly rip music from a C.D, vinyl, cassette tape, 8-track tape, etc. and put that onto my microSD card than deal with future distortion of sound or song skipping.