Imagine you're a mid-20s female who's going on holiday for a week (somewhere in europe that she hasn't been to before) with a slightly older male friend. If he suddenly could not make it (either due to health or documentation issues etc.. literally anything) which you get told about e.g. a few days in advance or even on the day at the airport, would you go without him as you've paid for non-refundable flight and hotel tickets and got annual leave from work etc.? Bearing in mind you'd be travelling alone, have no relatives in that country, etc.
Not based on any real life events but just asking out of curiosity