Participants will receive the nurse-led, motivational interview educational intervention in this group.

Family member participants will receive three counselling sessions: (1) preparatory session, (2) motivation session, and (3) planning session. The preparatory session will take 10-15 minutes, and the following two sessions at weeks 2 & 3, with 30-45 min, respectively. The sessions can be delivered via face-to-face, zoom meeting, or telephones. Before each session, the nurse will first assess the family member's readiness to engage in ACP based on the State to Change algorithm. Family members who have never thought about ACP will be in the pre-contemplation state. Family members who are willing to discuss end-of-life care will be in the contemplation state. Those who are ready to talk about end-of-life planning will be in the planning state. Readiness-based ACP goals will be established, and state-matched motivational interview counseling will be customized for each participant.

Family members' readiness for ACP will be measured by the researcher-developed family caregivers' ACP engagement survey (FACP-10), which consists of 10 items rated on a 5-point Likert scale. The survey assesses family caregivers' self-reported levels of ACP knowledge, readiness to discuss ACP with a loved one, self-efficacy in initiating ACP conversations with a loved one and barriers to such initiation, and emotional perceptions of and attitudes toward ACP, as well as whether having the necessary communication tools for ACP conversations. The scale scores range from 10 (the lowest) to 50 (the highest).Higher score indicates a higher readiness for ACP. Investigator developed the instrument based on the key domains reported in the Advance Care Planning Engagement Survey (ACPES) and the constructs identified in a systematic review of family caregivers' roles in ACP. The pilot data demonstrated adequate reliability of the scale in Hong Kong family caregivers.

Family members' readiness for ACP will be measured by the researcher-developed family caregivers' ACP engagement survey (FACP-10), which consists of 10 items rated on a 5-point Likert scale. The survey assesses family caregivers' self-reported levels of ACP knowledge, readiness to discuss ACP with a loved one, self-efficacy in initiating ACP conversations with a loved one and barriers to such initiation, and emotional perceptions of and attitudes toward ACP, as well as whether having the necessary communication tools for ACP conversations. The scale scores range from 10 (the lowest) to 50 (the highest). Higher score indicates a higher readiness for ACP. Investigator developed the instrument based on the key domains reported in the Advance Care Planning Engagement Survey (ACPES) and the constructs identified in a systematic review of family caregivers' roles in ACP. The pilot data demonstrated adequate reliability of the scale in Hong Kong family caregivers.