@borisschapira
This is interesting to me. Because I spend more time than I should looking for pictures of scientists when they were young, for my classes.

Textbooks typically have portraits of them as old people usually after an honour of some kind.

It's important to me that they see that great contributions are made by the young as well and they have a role to play. The greats had profound insights when they were undergraduates.

For the ageism part we have the amazing Brenda Milner.
https://en.wikipedia.org/wiki/Brenda_Milner