You're in Zakynthos, maybe that's a factor
I'm not joining in on the bikini issue but I would relate an experience a few years ago when we booked at an adults only hotel. However, it was only adults only from our travel company, the Italian companies used it as a family hotel and those Italian children made our holiday hell. Lots of British children are badly behaved at home and abroad, but f we think other nationalities are perfect, we delude ourselves.