Is it safe to assume that everyone has an email address now?

I had a request from one of our staff to change the forms to not require the email address because a single person (out of probably 1000 applicants) cannot submit the form because, apparently, that single person does not have an email address.

Is it safe to assume that everyone has an email address now?

Related : How do I determine if I should go through a change that would affect the users both positively and negatively?