Robert Lewandowski is a man of reputation, and I don't think that Barcelona should sell him because he has provided a lot of manpower for the club, and I am sure that even if they sell him, it's going to be very difficult for them to get a player that will replace him because his contribution to the club is actually a big one because even with his age, his performance is exceptional.
And I'm sure even Barcelona fans don't want them to sell him because of his contribution, and you hardly see people complaining about him because his always delivering, so there is no need for them to criticize him because his trying that all that i will say.
Football is never about emotions. You have to consider his age. I think I should support Barcelona's decision considering the quality of the team they are. Hansi Flick always likes to promote young players and he focuses more on building a young team. So it is natural that Lewandowski would want to sell him, even though he is an important player for them, considering his age. The two advantages they have here are getting some funds and replacing a young player. Barca fans will never be able to deny Lewandowski's contribution, but his age may prevent them from keeping him at Barca. Because Barca are turning to young talent. I am looking forward to seeing his replacement.