Like one cannot clap with a single hand, likewise I think most of the time loss is of both parties but it is the matter of understanding....general perception is that the loss is financial but this loss is one of the loss one can face….you know what I mean

If I have a say at all, I would like to see proper single female accommodations which is nothing from out of earth, as QA and most of the hotel do have such secured service apartments should there be a need of a single female.
However ideally if a single female is required to come all alone then she should be allowed to move with her family or a member of family which is called a Mahram (islamically). After all, the issue of legal or illegal is due to the religious values.
Just a thought, no offense…

Peace to all