>>2516618I think it's a matter of confort zones. If a (sheltered) girl is used to single pieces swimsuits moving to a two pieces may be a daring thing she does on her own. A tie side bikini may be something she can be pushed into by nosy friends, and a string bikini (not mini) may be worn if there is really no alternative (tricked with someone else clothes bag). It's completly out of her confort zone, but given the oportunity maybe it could be considered.
A micro or sling bikini are likely to be WAY to far and not worn under any circunstances. Better to refuse changing or leave.
Picture vaguely related...