You never know... try one or two  and see what happens.

If you can afford to loose the cost of developing I would go for it.
Most places will do a "develop only" charge so it should not be that
much.  You can print anything that comes out decent.. Or better still
scan and adjust in photoshop.

But try a couple first rather than the whole lot.

Yes.

It would be helpful to know what kii of film.
Must likely, there would be some fogging and/or loss of contrast. If it's
B&W, there are ways to develope it and developer additives that will improve
the results. If it's color print, there may be color shifts that may or may
not be correctable in printing.
Also, is it a current process? For color print, C-41 is current. For color
slide, E-6 or K-14 are current.
You may want to contact Film Rescue International in Canada. They specialize
in developing old films.

Only the person who shot the film can answer whether there is anything worth
getting printed.

If you have them done at a commercial lab.. be sure and tell them that
the film is old and stored at room temp.... I had 12 Rolls or
verichrome from the 60's and I got nearly all the pictures.. good luck

I would encourage you to have a couple dev. How exciting to see long
forgotten images.
We had a camera with a film in that was about that age, it turned out to be
my wife's Mum & Dads holiday snaps. The images are a bit thin on color, but
printable. Mum & Dad are no longer with us, so it made it extra special.
Good luck and let us no your results.  Hb:~}