Short answer
Taking on unnecessary debt merely to maintain a social standard is generally unwise and can create long-term financial pressure.
Islamic Guidance
What Islam teaches
Islam encourages responsible financial conduct and discourages waste and unjust financial burdens.
Practical Guidance
What you can consider
Plan a wedding within realistic means and avoid debt simply to impress others.
Sources
Qur'an 17:26-27; Qur'an 7:31; Qur'an 2:286.