Sorry guys to hear this, I was not aware it will redirect you to facebook... It was done through Google Forms, and I need to collect email addresses as this is a FINAL YEAR BACHELOR'S PROJECT which needs to be cited and stuff, so I would normally need signatures of each person who takes place in survey for bachelor's project. And about the question you mentioned, it's a question "what is your SEX?" nothing about gender, I just need to define my consumer, that's all. Almost every survey starts with this type of question because you need to define who is answering the question so you can position them on the consumer map. So please If you would be so nice and will take a look at it again, I would really appreciate it! If you still have a problem with sharing you email address, which WON'T BE USED FOR ANY PURPOSES, I can turn off this setting. I would also appreciate if you could share this survey on any other forums. Or if you know any e-bikers from Europe , sharing it with them would be very helpful as well. THANKS