Those players loves the game and no surprises they try to stay in it as much as possible, it is the only thing they learned to do in life, and it will be totally different once ypu retire.
Don't get why people keep suggesting it tbh, retiring at "high end" is probably one of the most overrated things anyway.
Crujif did and regret it, played again in US for team called Washington diplomates ffs (worst team name in professional sport history? )
Pele ended his career in Newyork Cosmos, Maradona played for Sevilla and then went back to Argentina (and failed drug tests,had a lot of scandals among other things) and people barely care.
Xavi played 4 years in Qatar after already overstaying in Barca, Iniesta is in his 5th year in Japan, Del Piero played in India, Rivaldo played in Angola and Brazilian 2nd division. And no one cares and it didn't mean anything in the grand scheme of things.
Let Leo enjoy football as long as he wants, won't be even surprised if he plays till he is 40.
Hell, if he isn't retired from by 2026 I am almost certain he will play in WC to add to his participation numbers there.