Hi. I will join the chorus and say SAK in celidor red plastic scales.
They are known worldwide, they are not seen as aggressive or weapon-like, all the tools will be used. Especially scissors and can opener. A corkscrew with the eyeglass screwdriver is needed if she wears specs. I had a screw go in the Sahara. I used the tweezers to fix but it was not easy. The corkscrew helps with making friends with people who have wine. The alpine locking model in red is good, The locking civilian version of the newest soldier is also good but I would still say a non-locking huntsman or similar is best.
If it needs to be a weapon, it makes a good fist load, a spiked knuckle or, of course, a knife. I would add a small tough single AAA torch to it like an older thrunite or one of those watch button led types.
I regularly travel with a spydie resilience, a leatherman wave and a sak huntsman. The resilience does food and sometimes provides comfort in less-salibrius places. Though it's never had to come out. The leatherman I never use but when in NZ once I needed a pair of pliers badly. Fortunately I had a multitool with me but it's why I continue to carry one. I have rarely used it since.
The SAK lives in my pocket where ever I am, including home which is the UK. It's perfectly legal here as it across most of the world. I have been through a number of security checkpoints on the globe where it was either ignored or they asked me to bag it.
I do not recommend the boker at the moment, though I am carrying one as a trial. I have never needed a glass breaker or a dedicated safety cutter but I have needed a can opener including last Tuesday when cooking at a friend's, the small screw driver it too rounded. The corkscrew won't take the glasses screwdriver either which is very annoying! Blade shape is nice and I like the g10 scales. I would consider making some for my huntsman.
I wish your daughter all the best in her travels, I always enjoy meeting US citizens abroad as too often I hear much fear from the USA about the rest of the world. It's a big planet and 99% of people on it just want to live, love and laugh. There is always risk in life but a sensible view will avoid the vast majority.
Btw flashlight. head torches are great, I always take one but at night they attract bugs in buggy places. The candle mode on older smaller maglites is much missed. They will still do that if modded to led.
And travel plug for sinks. Essential!
