Can you do the average age from ET, when the game was actually won?
And not sure what point you are trying to prove either? I think it's special that we won a cup final with half of the team during ET coming from our own academy, most of them only having a few (if any) professional appearences under their belt. If you can't see how Liverpool fans think that that is a special achievement, I don't know what to tell you. And I'd feel that way regardless of the team we faced and their average age.
Average age at full time was 22.64 for Chelsea and 24.09 for Liverpool.
Liverpool finished the match with one player more than Chelsea aged 21 or younger, but one of theirs was Elliot who's played more than 100 times for the club (Chelsea's have 115 combined appearances for them).
This was a title-challenging Liverpool side up against a Chelsea side currently sat 11th in the league, having finished 12th the season before, and who are on their fourth manager since the beginning of last season. I'd argue that, despite the lack of first team experience for those few teenagers, it's much better for those few youngsters to be playing in Liverpool's side, full of players used to playing for Klopp, than Chelsea's slightly older, slightly more experienced players, to be in a side fairly recently cobbled together (especially when a fair few have massive price tags to live up to).
Your final 11 had:
Kelleher, who's in his fifth season as back-up.
van Dijk, who's in his seventh season at the club.
Elliot, who's in his fifth season as part of the senior set-up.
Diaz, who's in his third season at the club.
Gomez, who's in his ninth season at the club.
Tsimikas, who's in his fourth season at the club.
Of the others:
Endo is a seasoned pro, Clark made his debut last season, and Quansah has 20 appearances this season, which leaves McConnell and Danns as the really fresh faces.
Chelsea's longest serving player in the 11 that finished the game was Chalobah, in his third season, and had made only one appearance this season before the final. After him it's Fernandez, Mudryk and Madueke, who all joined last January, with everyone else making their debuts this season.
I don't think anyone has an issue with Liverpool fans celebrating, but surely you have to admit that Klopp saying shit like it's his "most special" win is a bit much? The media love-in is nauseating and is absolutely being framed like a struggling Liverpool started the U21s while a high-flying Chelsea had a team full of 25+ year old seasoned pros, despite this categorically not being the case.