Sometimes the uncles and aunts who have daughters of the same age say negative things about the guy proposing to the girl. Because if this girl got married, they will feel a loss of status. So they see negative things and make the guy look unsuitable. This is one of those occasions where the parents must take a stand for their daughter and do the right thing and see the proposal for its merits, not for the desires of those who stand to gain nothing from this marriage.