Yes, Westlaw/Lexis/Fastcase etc. are quality legal research sources. But that doesn’t mean they’re your default.
Maybe it’s just because it is the go-to for… every question in life. But good ol’ Google gets a workout from lawyers (and law students). As Attorney.Memes skewers:

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Kathryn Rubino is a Senior Editor at Above the Law, host of The Jabot podcast, and co-host of Thinking Like A Lawyer. AtL tipsters are the best, so please connect with her. Feel free to email her with any tips, questions, or comments and follow her on Twitter (@Kathryn1).