Double Standard:
You are not just saying yes to a date. You might be saying yes to a marriage. Once the couple starts dating and they like each other…what then…you start doing more research that you haven’t done yet bec. you needed to answer in 2-4 days. By then it’s too late. It’s best to do all your proper research before the couple starts to date (one week sounds fair , especially cause Friday-erev Shabbos and Shabbos day are not ideal days for calling people to do research) …and of course always do Dor Yesharim BEFORE any Dating. Hatzlocha Rabba to all!