I guess it really depends on how committed you are in getting the type of tone and character of sound you're interested in. Learning a new playing technique might take more than you're willing to give. In my case, I happen to have studied classical guitar, so playing with nails just became part of my technique as I learned to play bass (I don't get (much) clicks from the nails hitting the strings because there is a proper technique which prevents this). They're only 1/16" to 3/32" past the tip; so, not in line with current classical guitar players or flamenco guitarists. Sometimes, though, I'll use the side of my finger to get a flesh tone from the bass, i.e., get more fundamental than harmonics. My finger nail tone is thicker than when I play with a pick, and gives me more attack/high-mid punch than playing with flesh alone. I dig it.
There's a lot we fuss over, that when listening to a recording, you'd be hard pressed to really tell the difference of things like what pickup brand, pedal, nail/no-nail, etc. IMO, most of it only matters to how it makes you feel and consequently play/respond to the music. I doubt one can tell I'm playing with nails in either of these songs, below. All that to say, I don't think you have to (various ways to get at similar sounds), but if you want to, I doubt it'll be an easy change to make.