No. It sends out the wrong msg to the boys ie. u can ‘get away’ with more (and I don’t mean just staying out later) than ur sisters and tends to make them arrogant. I would hate my daughters to feel resentment towards me for practising double-standards so both genders would have the same curfew in my home. As for the issue of safety, if the girls are out in a group with others I trust and arrangements have been made to get them home ok I don’t see how they’d be any less safe than the boys (infact from what I’ve seen it’s the Asian boys who are more likely to get into fights and trouble)..
With my own family altho my dad was very fair and said we should be treated the same my mum would tell me I’d need to come home sooner then my brother and me wanting to wind her up if she said 12 I’d make a point of coming in at 3 lol. My dad soon decided that rather than having a proper curfew as long as I phoned him to let him know what was going on that would be acceptable.. I always used to drive home myself rather than wait around on some lonely train platform and I never once came home drunk so that prob helped in him trusting me..