Agree the OP could use more context to further discussion.
FWIW, my brother "retired" in his early 30s, about five years before my dad retired at 67.
I say "retired" (in quotation marks) because my brother falls into the ERE-style crowd (though he's not influenced by nor communicates with online EREs, as far as I know). When he declared his retirement he spent a few years slow traveling and volunteering for an NGO. Since then his volunteer position has morphed into a paid, on-demand gig, and he's taken on other projects like building a rental home in Central America that the IRP would determine to be "work" and therefore negate his "retirement".
It makes no difference to me. He's now in his 40s, has multiple, moderate income streams and still works when and where he wants to and his savings account has slowly increased since his initial 'retirement'. Father, on the other hand, has taken what many consider to be the 'classic' retirement - he golfs, he gardens, he does home repair projects but nothing anyone would constitute as a 'job', and lives a very comfortable life on his sizable savings + SS + pension.