What’s the motivation behind tech companies’ egg-freezing policies?

http://america.aljazeera.com/articles/2014/10/16/tech-companies-familyfriendly.html

What’s the motivation behind tech companies’ egg-freezing policies? | Aljazeera America | by Marisa Taylor

“My reaction to it is, what a great discussion to be having,” said Sharon Vosmek, chief executive officer of Astia, a San Francisco-based group that promotes and supports women-led companies and links them with investors. “The more we can make the discussion about bringing the human element to the table, the more competitive we’ll be able to be in Silicon Valley.”