This is not only about age. It is about experience.
That matters at a World Cup. Young players used to arrive as wild cards. Now they often arrive with real first-team habits, tactical discipline and the confidence that comes from handling senior football pressure.
Mora looks especially intriguing because creative midfielders can change the rhythm of tournament matches. If the report is accurate, his rise has been sharp enough to make him more than a developmental option.
Diomande offers a different weapon. Wide forwards with pace and directness can tilt tight knockout games, particularly against deep defensive blocks.
Endrick may be the most familiar name, but familiarity does not reduce the threat. A young striker in a strong squad can thrive when the burden is shared.
Mbaye seems to fit the modern Senegal profile: athletic, ambitious and ready for bigger responsibility.
Páez might be the most unpredictable case. His pathway has appeared less straightforward, yet Ecuador have shown they will trust young technical players if they believe they can affect games now.
The bigger question is not whether young players will feature. It is which one grabs a decisive World Cup moment. That is often how these tournaments work: one start, one cameo, one goal, and the next global star is suddenly impossible to ignore.