Should the man call his parents when he goes to the woman's house to pick up his wife on the day of engagement? Cangnan in Wenzhou, Zhejiang

I am from Huzhou, Zhejiang, and my girlfriend is from Cangnan, Wenzhou. Recently, my girlfriend's family urged me to get engaged, but I feel that some of the conditions mentioned are unreasonable. Are these the customs of Wenzhou?

1. The bride price is above 10W (I have no doubt about this), but how to calculate the specific cost? The banquet was hosted by that man. My girlfriend said she would give her parents about 3W, and the rest would buy her dowry appliances.

2. When you are engaged, you should give a bride price of more than 3W (we don't have this in Huzhou, and the engagement is just to exchange rings for dinner).

The banquet is held in the man's hometown once, which is unnecessary in Wenzhou (it is said that it is not necessary to marry a daughter).

All expenses shall be borne by the man (catering, house, decoration, red envelopes, alcohol and tobacco, etc.). The so-called dowry utensils are all spent on the bride price of the man (at least we don't have this custom in Huzhou).