99.999% of non-musicians have no idea how many strings are on a bass. They will probably think that you are a guitar player if they have any opinion at all.
Yeah, there are a lot who can't tell a bass player from a guitar player, but the first thing that seems to get noticed is when the bass is not a Fender regardless of number of strings. And if it's got 6 or 7 strings that's two strikes right there. If you aren't a jaw-dropping virtuoso then you are out! For some reason the dividing line seems to be at 6 strings. I play 5 strings all the time for all kinds of traditional stuff and I don't seem to get a peep. But bring a 6 or God forbid a 7 and all the alarms go off. Nobody seems to count 4 or 5 strings but once you hit 6 especially in a more modern active bass all the traditionalists have a cow. Now if your gig is a coffee shop trio playing avant garde originals, a 7 string is just the thing and any whiners can be ignored. But if it's blues, God help you if you go more than 5. (My standard blues bass is a fretless L2500) At least around here this is true...
