"If you didn't really love it you wouldn't do it," Tuck said.
"When you really analyse it, with all the cold nights at training and the hard pre-seasons, Dustin's been going for 23 years, so he's done a very good job to stay focused and keep playing.
"He's had a fair bit of success and won a couple of flags, so that makes it a bit easier to keep going.
"But basically it's just about enjoying the game and enjoying being part of a team.
"The younger blokes at the club help keep you feeling a bit younger than you are too."