Do the big teams at this time no longer see the age of players like Ronaldo who are already in the old category? so you think that the big teams will send a proposal to Manchester United in terms of buying Ronaldo. A large salary is indeed a barrier for some clubs who want to bring Ronaldo, but Ronaldo's age is also a barrier for big teams to send proposals to Manchester United.
Why not? As long as his performance is still pretty good, I think it's still quite worth it.
He is the top scorer at Manchester United this season and this clearly indicates his performance is still above average. On the other hand, the impact given is actually quite large because indeed how many fans he brings if he changes clubs and the sales from Marchendise and Jersey are still quite worth it for now.
Ronaldo is old now but his age has not affected his performance on the pitch, all the clubs wanting to sign him believes that he will still prove that he is still a good player that is why they keep pushing for the deals to bring him their various clubs. So far Ronaldo has been linked with a move to Chelsea, Bayern Munich, and PSG. I believe they know his worth that's why they aren't considering his age.
No doubt Ronaldo performed very well last season despite Manchester United's poor outing, he was their best player of the season and also the club top scorer so moving to new club he will also perform well and the club's finance will be increased too as as result of his signing.