user_id,email,birth_date,gender,consent_flag
1,alice@gmail.com,1990-02-17,F,True
2,bob@yahoo.com,1985-07-05,M,True
3,charlie@tempmail.com,2000-11-21,M,False
4,dana@outlook.com,1992-05-30,F,True
5,eric@mailinator.com,1988-09-10,M,True
6,frank@gmail.com,1995-12-01,M,True
7,grace@no-reply.com,1993-03-15,F,True