Back in the 80's every bass player and his dog was slapping the bass, you couldn't get in a music shop for slap happy bass players, it was the bass playing equivalent of the EVH tapping solo for guitarists.
Realistically, though it's just a another technique to be learned, it's a bit like refusing to learn how to play artificial harmonics, sooner or later you will need to know how to do it.
The other day I was working out Peg (Steely Dan) and was surprised at how many bass players were skipping the slap/chorus section on YT.