Which question is considered inappropriate to ask during a job interview?

Asking about a candidate's age during a job interview is considered inappropriate because it can lead to age discrimination. The Age Discrimination in Employment Act (ADEA) prohibits employment discrimination against individuals 40 years of age and older, and inquiries about age may suggest that the interviewer is making decisions based on age rather than qualifications and experience.

In contrast, questions about professional experience, availability for weekend work, and motivations for wanting to join the company are relevant to assessing a candidate's qualifications and commitment to the role. These inquiries help employers determine whether the candidate possesses the relevant skills and aligns with the company's needs and culture.