No, Nadal would have developed a very different game if he grew up then.
Nadal would have developed a different bloody game if he had started back then? Are you kidding me?
This is the most ridiculous, irrational argument, I have ever friggan come across.
This guy's game, entire game, is built around the heavy spin he can put on a tennis ball. Most crucially on his FOREHAND and slightly less crucially on his serve. The swinging lefty serve. There was no way back in the 90s that you could generate that much spin with how immature string technology was at that time. He would not have had been able to form that swinging lefty serve and he certainly, certainly would not have been able to develop that heavy as **** topspin forehand. This is why we actually see more and more lefties having greater success in pros.
Nadal's whole effectiveness....
.....is the heaviness IN SPIN he can generate with his forehand. The leftiness of his swinging serve into the weak right hander's backhand. These two qualities have been developed with the aid of incredible work ethic practise and perhaps also a bit of innate talent, BUT really, most of the reason it is due to his physicality. The brute force and strength that goes into creating that heavy topspin forehand, with the pulling motion upwards, finishing above his shoulder.
My point essentially is, IF Nadal had been given racquets where the strings meant you couldn't generate as much EASY spin using, he wouldn't have had the talent (I'm sorry but it's true), the talent, to develop any other style of game to get his game to the level of being even able to PLAY in the pros.
He was able to capitalise on modern string technology because he had the physicality to develop such an artificial, yet workable technique. Without modern string technology, his physicality wouldn't have been able to take advantage of anything. As the game in the 80s and 90s lent itself to big serving, having great hands and feel around the court.