Well before The Falcon & The Winter Soldier began to explore the fallout of the decision, Steve Rogers explained why he chose Falcon as the new Captain America before he time traveled at the end of Avengers: Endgame. In the lead up to the culminating Marvel Cinematic Universe film, one burning question fans had was what the future held for Captain America (Chris Evans). Many thought he could die saving the day, but he instead got a happy ending as he went back in time to grow old with Peggy Carter (Hayley Atwell). The moment served as a great closing to Steve's story, but then left the world without a Captain America.

This only lasted a few seconds in real-time though, as old Steve appeared not too long after regular Steve entered the Quantum Realm. His emergence happened as Smart Hulk (Mark Ruffalo) and Sam Wilson aka Falcon (Anthony Mackie) began arguing over what went wrong. But, Bucky Barnes (Sebastian Stan) was the first to notice Steve sitting on a nearby bench and told Falcon to go talk to him. This proved to be an important moment in Sam's life, as Steve gave him his own Captain America shield. While some have questioned why this decision was made (instead of giving the shield to Bucky), Steve actually explained why he made this choice moments before.

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Right before Steve enters the Quantum Realm again, he exchanges pleasantries with Bucky and Sam. Sam offers to go with Steve on this journey and Steve's response is the answer fans have been looking for. He says, "You're a good man Sam. This one's on me though." It may not seem like much at first, but Sam being a "good man" is exactly why Steve chose him to be the new Captain America. It is a callback to what Abraham Erskine (Stanley Tucci) said to Steve in Captain America: The First Avenger when he asked why he was chosen to undergo the supersoldier experiment. Erskine said, "Whatever happens tomorrow, you must promise me one thing. That you will stay who you are, not a perfect soldier, but a good man."

While Captain America has always had super strength, super speed, and a variety of other enhanced abilities, the core of him as a character is his morality. Steve Rogers is a good man even without his superpowers; he was jumping on grenades back when he was still a scrawny wannabe soldier. Sam may not have actual superpowers like Steve - or Bucky, for that matter - but he does have the same moral compass and the strength of his character will no doubt play a significant part in Phase 4's new show. Sam has always been willing to fight with Steve no matter what because of their like-mindedness. And even though Steve already made up his mind by this time to appoint Sam as his predecessor, him once again offering his services results in this great moment and subtle explanation of his decision.

Even if this callback didn't happen, the choice between Falcon and Bucky as the new Captain America should've been a no brainer for Steve. This isn't because Bucky is not a "good man" in any way, but rather simply because Sam is better equipped to take on this role. Bucky still has Hydra codes potentially swirling in his subconscious and has a known history as an assassin, even though the MCU now views him as a hero. Plus, the interaction Steve has with Bucky right after this "good man" moment indicates that he was well aware of what Steve was going to do, so it is always possible that the best friends talked through this decision off-screen and agreed Falcon was the obvious choice.

Now that Falcon is set to be Captain America in the MCU moving forward, The Falcon and The Winter Soldier will be the first chance to see him tested in this capacity. The marketing for the show and the reveal of the new Captain America, played by Wyatt Russell has already indicated that Sam becoming Cap will not be a decision that is universally approved, so his good nature may be called into question early on. But, with everything that Sam has shown to this point and what Steve sees in him, hopefully, he'll continue to be a good man as he wears the red, white, and blue.

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