You might ask if it should use Mr./Ms. (or Dr. or some other academic title) etc but even that is a bit anachronistic. Maybe this makes sense if you're sending mail to your customer, but even then.
How to solve 50% of your GDPR troubles: stop asking for data you have absolutely no use for (and no, selling customer data is not a legitimate use)
And, for us, it is easier to treat all titles the same on the backend side, rather than allow freeform input.
The people who design those forms are second in line to be put against the wall when the revolution comes. Right behind the people who design free-form input for international telephone numbers but have a hidden undocumented mandatory format that gets rejected and all you see is a red asterisk beside the field when you "Submit" is rejected and all the other fields get blanked out.
We have 3 gender options, mandated by law, in a dropdown which makes sense for our company. But we don't mandate honoriffics, nor do we use a gendered form where possible. And all input goes through an employee. (We are a worker leasing company, ONLY active in Austria)
> Right behind the people who design free-form input for international telephone numbers but have a hidden undocumented mandatory format that gets rejected and all you see is a red asterisk beside the field when you "Submit" is rejected and all the other fields get blanked out.
You need a revolution to justify it?
Also: We employ people to work at a different company through us.
> In Austria some people are VERY insistent that you use the proper title.
So let those people put their titles in the freeform input if they care.