Short answer
Family involvement can be beneficial, particularly for important practical and social matters, while the prospective spouses should also understand their own responsibilities and expectations.
Islamic Guidance
What Islam teaches
Islam recognises family relationships while giving marriage its own legal rights and responsibilities.
Practical Guidance
What you can consider
Allow respectful communication between the prospective spouses and involve appropriate family members where their involvement is useful.
Sources
Qur'an 4:19; Qur'an 2:232.