No matter what one chooses to do in life, sooner or later they're gonna need some tools for the job no matter how awkward they feel at first, don'tcha think?
"Need" being the key word here that ignores the simple fact that not all pedal steel styles- or sounds - create a "need" for picks. If you're tying a knot in a string you use your fingers - not a screwdriver.
What we're saying is that learning to use them, first, and then making a conscious and informed decision as to when to use them, or not to use them, is far better.
Why "first"? If the sound and feel you already get on another instrument without picks works fine and you don't plan to play traditional pedal steel why do you need to learn to use them *first*...or at all?
You can make a conscious, rational decision not to use them when their use would be a waste of time.
Not all players have a need to play both ways.
For beginners intending to play traditional styles - yep, picks are pretty much essential. But experienced lap or resonator players that don't use picks - and don't plan on playing traditional pedal steel - may not need them at all.
I've heard some very nice bareback solo playing but nothing that would cut through a band or deliver what a singer might expect.
That simply means you probably haven't heard that many "pickless" players work with bands. As mentioned in an earlier post, Kim Deschamps played without picks with the band Blue Rodeo and never had a problem cutting through or backing vocals.
And FWIW players I know who don't use picks do not use fingernails - they use the "meat" of the fingers and thumb. For players that normally use picks it can be a useful alternative - especially on quieter songs by eliminating the sharpness of the picks hitting the strings without the often undesirable "swell" of volume pedal use.
Personally, I use picks about 90% of the time - mainly because of my background in bluegrass resonator and banjo. I don't "need" them for pedal steel but are simply used to them. However, there are times I've played specific songs or entire gigs without them.
If it seems I'm playing a bit of "Devil's advocate" - I am. Sometimes the focus among many pedal steel players is very narrow - not a "fault", just something that "is". But there *are* other ways of doing things that work just fine.