Persons lacking decision-making abilities due to major neurocognitive disorders cannot currently access medical assistance in dying (MAiD) through an advance request. A questionnaire was designed to assess social workers’ attitudes toward extending MAiD to this population. A recently published quantitative analysis of their answers (Bravo et al., 2022) shows high support among social workers for giving incompetent persons access to MAiD. The present paper reports the results of a qualitative analysis of the comments left by the respondents at the end of the questionnaire, through which they voice concerns. Of the 367 questionnaires returned, 162 included comments. Main concerns pertain to difficulties in carrying out advance requests, the risk of abuse, and the healthcare system’s failure to address the needs of persons living with major neurocognitive disorders. Should advance requests for MAiD become legalized, social workers wish to be involved, adequately trained, and supported in their work.