100% agree with what other people mentioned that you need to have chemistry etc.

The only way for this travel thing to work is that you two would have to be around the same age and can atleast talk to each other naturally, almost as if you could date or be friends atleast, Otherwise it will just feel weird and forced like you both know it's business with rules and regulations when you want it to feel natural between the both of you where you can partake in her activities she organised for the day and her partake in yours etc, last thing you want is to have a awkward convo whilst eating dinner at a restaurant or even worse pay for her shit and still have to pull out your wallet before you go to bed for the night But if you okay with that then go for it.

If she is a WL that's younger than you and treats you as one of her older nice and sweet customer then I wouldn't even bother as she will look at you as a paying customer still, if you are same age atleast and you can vibe together then you would have a better experience.

I have done the holiday with a WL and have also been asked to come visit another when she goes back home to Thailand next year, this was only possible due to our chemistry otherwise if we didn't have it then I would even waste my money or time.