Tim cared a lot quicker than 10-15 years. So did Tony and Manu. Tim opted out to create cap room for Kidd in 2003. Manu signed for $1.4M on his FIRST CONTRACT, after being the Euroleague Final Four MVP and beating the US team at the 2002 Worlds. Tony left $25-30M on the table with his first post-rookie contract. ALL of those were when they were about Kawhi's current age.
Manu and Parker were part of the Big3, not the franchise player. That was Tim.

Next time, try to mention some player in today NBA, not guys who hit their peacks in mid 2.000's.