As a female STEM student, I have seen firsthand the male-dominated culture of STEM fields, but of course that is changing with time. Encouraging women to pursue STEM fields isn't about pressuring them to do something they don't want to do. It's about encouraging those women that are interested to not lose faith in themselves. There's an increasing number of studies about how females are more likely to drop out of STEM majors and programs because they feel inadequate, even if they are doing just as well as their male colleagues. Plenty of female STEM professionals will tell you about gender-based challenges they had to overcome. I've faced it myself countless times. All this to say - encouraging women in STEM does matter, and that can be difficult to understand unless you have experienced the challenges firsthand. NASA encouraging girls would be wonderful, and connecting current professionals with young girls is a great way to do that. We started an organization to facilitate that at my university and so many female STEM students have talked about how much it has inspired and encouraged them.