Short answer
Relatives may advise, but their social preferences should not automatically override the rights and responsibilities of the people directly involved.
Islamic Guidance
What Islam teaches
Islam values consultation but also emphasizes individual responsibility and justice. Advice should be based on genuine concern rather than status, gossip or fear of public opinion.
Practical Guidance
What you can consider
Ask relatives to provide specific and verifiable concerns. Avoid allowing vague statements such as 'people will talk' to become the sole basis for a major life decision.
Sources
Qur'an 42:38; Qur'an 49:6.