If she has little dating experience, or is perhaps saving herself for Mr. Right, one can understand it. If she is a virtuous girl, I believe you have to defer to Thai culture and respect her wishes to have a friend tag along. If however the lady you are dating is something of a walking mattress, it may be that she has brought her friends along simply to party on your tab.
In such a situation, if you are not entirely thrilled at the prospect of distractions from the group and a sizeable bill at the end of the night then don't be shy to quietly mention to her that a group date was not what you had planned.
I wonder if the reasons for a chaperone still exist today. Unless the couple is dating in a smaller, conservative town, I believe there is no real need, although some Thai women would like the idea of a friend tagging along, especially if the date is in the evening.
Apartment with Shower 1 large double bed.Dancing With The Stars' Val Chmerkovskiy and Jenna Johnson on finding love
Studio Apartment 1 large double bed. Need more details before you book your stay.
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