Would you marry an unchaste woman? What would make her unchaste? How many partners would she have had to have to be considered unchaste?
Or an unchaste man. How many partners would he have to have had before you'd consider him unchaste?
Not unusual for couples to live together. Many women would have asexual history. How long it is might be a topic for the could to address,as should the mans.
You talk of women being chase but not men. Should they be virgins till they marry? Today people do not think much about it.
Couples at any age should talk about sex history, use of condoms, any VD and they should both be tested before beginning their relationship.
40 yrs ago, people did not care about using condoms, they should have.
Virgins on wedding day is not so common. Some go so far as to fix the hymen so they can again be virgins.
I don't like the idea of children or young teens being cavalier about sex, but if they do intend/hope to have sex, condoms should be a must.
How many partners have you had?