85%+ of VR users are male, compared to say 70/30 male/female balance of say Fornite. (1/2)
Any way you carve it the audience for Alyx is going to weight heavily male.
And research suggests that gender-swapping in VR is a profound psychological experience:
https://ieeexplore.ieee.org/document/8260949
(1) https://www.rakutenintelligence.com/blog/2016/virtual-realit...
(2) https://www.statista.com/statistics/865625/fortnite-players-...