It is interesting to think all the stuff I saw in the movie, "The Player" might be true. In the movie, the writer got screwed, then killed. (The screenwriter, Michael Tolkin, also wrote the novel on which the screenplay was based. He was born in 1950.)
The world of screenwriting may be for the young, and I have been in places where looks and enthusiasm were enough. It was fun, but I am further along now, and interested in other things. It seems a shame that a whole section of creative endeavor would be closed to older participants who may be able to produce a product but cannot participate satisfactorily in the meeting-and-looks department.
In some artistic endeavors (classical music, ballet, opera) one must start young because of the amount of formative time it takes to become seriously proficient. In other arts (painting, writing) age and experience can be a powerful factor in artistic expression and performance of craft.
It is too bad that the Hollywood screenwriting model is skewed to exclude the work in favor of the personality, but a look at the level of entertainment available today in films and television should give us a clue. I still see independent and foreign films which are truly breathtaking, and the screenplays are by a variety of individuals of all ages and backgrounds.
Merchant-Ivory - the great production company whose three main participants were producer Ismail Merchant, director James Ivory and the screenwriter, Ruth Prawer Jhabvala, - brought some of the most riveting and comic masterpieces to the screen - Shakespeare Wallah, A Room With a View, Howard's End. Ruth Prawer Jhabvala was born in 1927. Her novel, Heat and Dust, won the Booker Prize in 1975. Two of her screenplays won Academy Awards for best adapted screenplay.
I know the Merchant-Ivory model is not the Hollywood model. And I think that's too bad. But it does illustrate that the Hollywood model is not the only one.
While all writers need experiences to write from, some are born with such talent that they transcend the need for extensive experience and make fine young writers. But many writers need the experiences of life - and the honing of the craft of writing - to become good and even great writers. Age should never be a discriminator in good writing.