daredevil none of our top players in the past started playing so many games in a row at such a young age without it affecting them. Only ones I can think of playing a large number of games at 17/18 and the continuously into their 20s were Fabregas and Wilshere. The latter has retired due to his injuries and the even Fabregas was affected quite a bit from the 2008/09 season onwards.
Not every player is a machine like Messi and Ronaldo starting so young and going strong into their mid to late 30s.