That’s fairly old-school, and depends more on your partner than her parents. You should come to the decision to marry as a couple.
“How traditional is his or her family, and what century are we living in again?” says Sofi Papamarko, a dating and relationships expert. “Some parents consider this a classy move. Unless it’s merely a symbolic gesture made out of respect for your partner’s family’s values and traditions, it strikes me as useless and dated.”
Plus, you don’t need anyone’s approval for your relationship. If you do, you probably shouldn’t be getting married.