All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
There is nothing wrong with this matter; rather, it is among the good traditions which lead to affection and love between the Muslims.
In principle, all the traditions are permissible unless there is evidence that they are forbidden; for more benefit, please refer to Fatwa 99480.
The fact that those relatives are well-off is not a religious impediment to giving gifts to them.
Allaah Knows best.