How will I carry it? Pockets won't work -- between my wallet, knife, phone, and keys, I already have enough things in my pockets. Lint doesn't sound too appetizing either.
If you're really concerned about straws ending up in the ocean, just don't use a straw.
Personally, I'd lean for the titanium one. I've got one of the titanium sporks, and it's totally flavorless, which makes it quite a bit better for, e.g., stirring lighter teas. Stainless steel has a bit of a flavor that comes through with anything light.
This was my first reaction too. What I'd like is research into the application of these straws? Do most of them stay in first-world countries? Or are these in wide use in third world countries where I'd expect the most need for these straws? Anyone has more info on this?
Depends on the source of the straws (maybe the material can be sourced from leftovers from some other production) and if you plan to let your grandchild inherit it.
Cleaning and the stiffness/inflexibility of the whole thing are going to take some getting used to! Not entirely convinced these will be taking off in a massive way any time soon...
Maybe they could have the last few inches made of a rubberized/plastic material which would slide over a lip (to ensure a seal for suction). This tip would allow flexibility and would also avoid painful accidental biting on metal.
I have to think silicone straws would be much better for this. Theya are flexible so you can stick them in your pocket or wallet, and they feel similar to plastic straws.
If you're really concerned about straws ending up in the ocean, just don't use a straw.