" When I was a kid (here) most of my friends had the Parks’ nose. I darn it…didn’t need one."
On the east coast it was the Diamond nose. I got mine when I was 16.
No doubt both Jane and Helen had work done. Fonda even admits it.
I did know Jane had work done, I think it was done extremely well. Christie Brinkley has had a lift, and I think she looks fantastic, although she looked great without it. But it did take 10-15 years off of her.
I recall reading something years ago on the then-new trend requiring women to look fabulous and trim as they aged that said basically, “Newsflash: if you didn’t look like Catherine Deneuve at 20 you will not look like Catherine Deneuve at 60.” 
“It’s a given that there aren’t many good roles for actresses as they age”
That’s actually not so true nowadays. Television has been a boon to older actresses. The average age of Emmy nominated actresses is well over 40.
Like here’s the Best Acress Comedy nominees
Pamela Adlon (“Better Things”) +50
Tracee Ellis-Ross (“black-ish) +40
Jane Fonda (“Grace and Frankie”) +75
Lily Tomlin (“Grace and Frankie”) +75
Allison Janney (“Mom”) +55
Ellie Kemper (“Unbreakable Kimmy Schmidt”)+35
Julia Louis-Dreyfus (“Veep) +55
Drama Actress
Viola Davis (“How to Get Away with Murder”) 50+
Claire Foy (“The Crown”) 30+
Elisabeth Moss (“The Handmaid’s Tale”) 35+
Keri Russell (“The Americans”) 40+
Evan Rachel Wood (westworld) 30+
Robin Wright (“House of Cards”) 50+
Miniseries:
Nicole Kidman (Big Little Lies) 50
Jessica Lange (Feud) 65+
Susan Sarandon (Feud) 70
Reese Witherspoon (Big Little Lies) 40+
Carrie Coon (Fargo)35*
Felicity Huffman (American Crime) 50 +
Watching the Emmys and thought of this thread. Lily Tomlin (78), Dolly Parton (71), and Jane Fonda (79) all looked taut and great. Without a doubt, they’ve all had work done but by talented surgeons.
I wouldn’t have recognized Jane Fonda if they hadn’t mentioned her name