It's very much perceived as a vaguely "redneck" or "hoser" way of speaking here.

Another similar dialect isogloss-ish that often goes with that is dropping the past-tense "I saw" and replacing it with the past-participle "I seen". Or, alternatively, another way of putting it is that it's dropping the "have" in "I've seen"

Middle class parents and teachers definitely scolded kids for speaking this way when I was growing up. Was seen as lower class.