date of birth unable to select "I want to use my current email address"
I know i cannot change my DOB due to security reason, but i can sign up by using "Don't want a new Yahoo email address? Click I want to use my current email address at sign-up." as this information is on help page.
However i tried to use this option, but i always warn me "If you want to create a new Yahoo email address, please use the link below."
1st
ranked

We’d like to look more into this, please send us a DM on Twitter at @YahooCare, containing your Yahoo ID and a screenshot of your experience.