Yes i think it matters in a relationship , but depends on both persons age. If the person is not in legal age and the otherisin the legal age that is not acceptable. But when both peeson is in the legal age , and the other is younger its acceptable as long as they are in the legal age. Relationship needs both couple the trust with themselves to be able to survive in their relationships and love with each other. They say age doesn't matter as long as you love someone , but the truth is , it matters a lot , you don't want to accused you a adultery or child abuse.