Hey I’m trying to create a social outlet for people, possibly a business idea. An important aspect is that guys and gals will be separated (long story, but it’s not intended for dating, etc.). But I’m beginning to think that I may need applicants to prove their sex. Is their a way to do this respectfully? As in, not just ask their gender preference, but have them prove it on their form? Possibly upload a pic of Driver’s License?

I’m just trying to avoid guys secretly signing up as females as a safety issue. Hoping I’m not offending anyone with all this. Thanks.