Suppose that it was more common than not for women to be kept chaste. Perhaps the following ideas would be present as a result (or as contributing causes?).
1. Chastity belts being mass-produced, and therefore commonly available in brick-and-mortar stores, inexpensive, with large ranges and many competing brands.
2. Chastity belts appearing in entertainment media, visible as a common article of clothing for female characters.
3. Chastity belts being worn in public, whether concealed under clothing or not.
4. Famous women discussing chastity the way celebrities are asked about sex in reality.
5. Entertainment and dining venues where a selling point is that the staff are locked in chastity belts.
6. Dating sites having options to specify whether you are or aren't locked, and whether you are or aren't seeking a locked partner.
7. Certificates of ownership for pussies. Naturally, many women would not be the legal owners of their own pussies. That would be no fun~
8. "Keyholder" as a relationship status.
Do you have ideas? Feel free to share.