The younger Cleary indicated he would not make a decision on his playing future for at least another six to eight weeks, with State of Origin looming for the incumbent NSW No.7.
Widely considered the NRL's best player, Cleary would command a huge salary if he tested the open market for the first time in his four-time premiership winning career.
Most notably, a tax-free windfall and reunion with ex-Panthers five-eighth Jarome Luai are both on offer with expansion side PNG Chiefs from 2028.
But in the days since coach Cleary announced he would quit Penrith after 2027, the halfback has focused less on his own future and more on supporting his father.
"It's something dad's been holding onto for a little while now. I'm happy and I'm proud of him," Cleary said.
Since Cleary's shock call, speculation has turned to the swathe of Panthers who are uncontracted beyond 2027 and in position to follow their coach out the door.
At Brisbane Airport on Saturday night, the younger Cleary joked with his father that he was to blame for the media scrum that assembled for Penrith's arrival at baggage claim.
"This is because of you," he laughed as his coach sauntered out of frame.
Isaah Yeo, Blaize Talagi, Mitch Kenny, Brian To'o and Liam Martin are among the other stars able to negotiate with NRL rivals for the 2028 season from November.
Cleary previously indicated he was in no rush to make a decision on his future and said his father's exit plan would not make him less likely to re-sign with Penrith.
"It doesn't change my position," he said.
"I'm still not ready to make that decision yet and that won't change over the next six-to-eight-week period. It's pretty hectic as it is.
"It's obviously been big news, but it hasn't changed my position. I can guarantee nothing will happen over the next little period."
Cleary felt the decision to name Peter Wallace as his father's successor could help the Panthers convince their off-contract stars to stay put.
A former NSW Origin representative, Wallace began and ended his career with Penrith and has been on the coaching staff since 2023.
"Everyone's so happy for him to be the one stepping into the role," Nathan Cleary said.
"If that position was now vacant and no one knew who was going to be taking over, I think it makes it a lot harder (to convince players to stay).
"The fact that he's the one coming in, it probably makes it an easier decision for people."
Cleary personally would have no qualms playing under Wallace, who featured in his NRL debut during the 2016 season.
"He was someone that honestly I looked up to," Cleary said.
"The way he played the game, the toughness and all that, he's someone that I have the utmost respect for."
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