Did the math, these aircraft have flown less than 28k flight hours(per a/c) over 50 years. Theyre very lightly used. Just the SLEP adds 40k flight hours, these can serve well into the 2050s.
"50 year old junk" lol PAF airframes been in service since 63, these came a decade later, have basically barely been touched, with tens of thousands of hours of life left in them and thats excluding an optional SLEP which can extend their life by another 40 years...