The England U20 international made his first league start in the 1-1 draw with Derby, and was included in the squad along with Luca de la Torre, Mattias Kait and Steven Sessegnon, while Matt O'Riley was part of the larger group - in front of summer arrivals Jordan Graham and Yohan Mollo.
However, both Edun and de la Torre merited their inclusion in the squad and produced solid displays, with the American looking particularly dangerous when he entered the fray in the second half.
And the Fulham boss insists it doesn't matter how old a player is, if he believes they are the best choice for the side he will pick them for his squad.
He said: "I try choose what I believe is best for my team.
"This player is working with me and it's my responsibility to pick what I believe is best in different moments.
"We gave a debut to one English international young player, who is European champion with England and he is good news for England and good news for Fulham academy.
"I use de la Torre, both players played well, both played hard and both weren't worried to play against one of the most experienced teams in the Championship.
"I am not talking about future, I am talking about present, we don't know what will happen in future but at present these people deserve to be in the squad, both people deserved to be around the squad.
"It's not important whether they are 16,17,18, 19 or 26 year old player."