Do I really need an estate plan in my 20s or 30s?

Honestly, yes. Estate planning sounds like something your parents do, but it's really just a set of documents that make sure the people you love are protected if something happens to you. The truth is, the earlier you do it, the easier it is. Your life is simpler now than it will be in ten years. Having these documents in place means you're covered from day one, not someday.