Some players can separate moments when you can party, and moments when you need to be a committed professional. Nothing wrong with partying in vacation if you apply some basic safety measures. We will see if he starts to like partying more than football. Then his private lifestyle will become a huge career-jeopardizing problem.
Off the field and on the field activities can be properly compartmentalized by extroverted types, if the work ethic part is deeply embedded in their mentality.
The one problem is that avoiding temptations is certainly easier than controlling them. But I have seen people that party really hard and work really hard also, because they always keep the two on separate lanes. Hard, but doable if the individual in question has some strong principles that will help him control this addmitedly dangerous mix.
If spending his recently acquired fame and money becomes more satfisfying than playing football, then yes, he will throw it away. If not, he will continue to play football at an elite level, and can also have fun in his free time. Depends on education, intelligence, and personality.
Will be interesting to see. First superstar raised with tik tok, instagram and such.