It is likely that Lamine Yamal's market value will grow rapidly over time considering its performance. If Yamal is truly able to maintain consistent performance and work hard to improve the quality of his game, then it is not impossible that he will become a player with a value of 80 million euros at the age of 19 or 20 years.
Bringing a 16-year-old player to the first team is a big risk for regular teams, but Barcelona is a club known for giving young players such a chance. La Masia is an academy that everyone talks about and where great stars are trained. Giving Yamal a chance at this age sets an example for young players all over the world and everyone wants to join the Barcelona youth academy. Even at the end of this season, Yamal's market value will increase significantly. I can't imagine how valuable he'll be when he's 20-21. It's clear that if he improves himself and continues to play without getting injured, he will be one of the brightest stars of the future.