I’m a pretty experienced traveller, and typically evaluate and classify EU locations the same way I do UK destinations. Ayia Napia, though, IS a red flag for me, following the famous 2019 gang rape case and what that incident has raised about how the local authorities handle sexual violence by men toward women. It’s not just business as usual and you can’t assume that a 17yo girl will be “safe” if she acts as if she were in the UK.
That doesn’t mean that your daughter can’t or shouldn’t go - I totally understand that she wants to be with her friends and that this is a relatively cheap, close, superficially fun destination. What concerns me, though, is how trivially rape and sexual assault against women by men are treated by the local authorities, and how they are excused and rationalised. If your daughter - or any traveller - were to become a victim in Ayia Napia, that would be especially alarming as that is a place that is noticeably lacking in sympathy or grace for victims, especially girls/women who dare to question the authority of any man.
To be clear here - my contention is NOT that Cypriots are more prone to rape, commit sexual assault, or hurt women than anyone else. The aggressors in the 2019 case were not local; but the authorities knew who they were and still let them leave the country - a courtesy they did not extend to their victim. My main concern is that IF something DOES happen, the authorities in Ayia Napia not only will not help the victim, but very likely may facilitate a situation where she becomes even more exposed and vulnerable as they take the opportunity to trumpet their support for male predators at the expense of women and girls, as the mayor of Ayia Napia did very clearly on the international stage in 2019.
(Edited as my initial post showed up in bold font, which I didn't intend.)