That’s how I feel about Nobody, the action movie with Bob Odenkirk. A 59 year old beating up a bus of young punks, such a power fantasy, but it’s just so hard to believe.
Nobody (2021) - Bus Fight Scene (1/10) | Movieclips

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I like the one in Secondhand Lions. Similar theme. Perhaps more believable.
Second Hand Lions Bar FIGHT Scene

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Ohh, young Haley Joel Osment and Robert Duvall. I don’t know how I missed this movie! As in, I didn’t see it when it came out. Might be worth a watch later today.
It’s a quite enjoyable watch!