How to make sure recruiter fills DOB of an candidate profile

Summary:

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Hello,

I understand we cannot add any additional fields in candidate creation page while a recruiter creates a prospect.
However the one issue is , when a recruiter creates a profile on behalf of candidate, they are not filling any dob etc , and hence that missing when the candidate is converting to employee or their pending worker record.

How can we make sure even recruiter fills that ? or any work around such that that filed is filled and not blank.

Version (include the version you are using, if applicable):

24c

Code Snippet (add any code snippets that support your topic, if applicable):