I started off on guitar, so when I switched to bass I played with a pick. Over the next couple of years (this is 30 years ago) I gradually moved to mostly finger style, with pick when needed. Around 1985 I had 10 years off bass playing and almost exclusively played finger picking acoustic guitar, doing solo singer/guitarist gigs. Because of that, when I got back into bass playing again in around 1997 I played fingerstyle all the time, because I hadn't used a pick for anything for so many years. These days, I pretty much always use fingerstyle at gigs, but have recently started practicing at home with a pick again, just to give me more flexibility if I need it for a fill-in gig or recording or whatever.