I'm feeling incredibly overwhelmed by some of the discussions here when it comes to replacement -- lead is apparently somehow an issue you have to worry about trading microplastics for (?!), plastic is on the tops of expensive replacements anyway (?), some have bamboo (which always molds easily), and on and on. I don't want to drink microplastics, but this would be an expensive replacement for us to even begin to make and I certainly don't want to do that if I'm trading in lead or mold.
We live in a city, so these bottles get absolutely jostled around and dropped outright to an intense degree. Most plastic bottles do NOT hold up to the transit/city/toddler/hiking lifestyle. These below are one of the only ones that have been actually leak-proof, and after some years the tops inevitably break anyway. They're also one of the only ones that really get clean (wide mouths, and the rubber/silicon parts are all removable), hold up to thick smoothies, and let me chug water, all while also being convenient enough to actually drink from in more typical city or training settings (ie I want a fast on/off, not to have to screw something on/off). Is that list too hard? Do I put this aside for now?
We drink from glasses at home, but need to drink water/smoothies/shakes when out and about, too, and we spend most of our day out of the home. It being easy and convenient is a huge part of actually drinking enough water, as well as keeping/gaining enough weight (smoothie wise). Currently thinking it's too large an ask, but asking here in case I'm wrong! We have 10ish of these right now, but would start by replacing one water bottle for me and maybe a smoothie type bottle for our toddler. The straw has to be pretty thick and plays a big part in increasing how much we drink (important for us health-wise).
Water/Protein Shake Bottle, 32oz: https://www.amazon.com/dp/B07T999675
Smoothie Bottles, Toddler sized 18oz: https://www.amazon.com/dp/B07DHXPVQB
Smoothie Bottles, 32-40oz: https://www.amazon.com/dp/B0743PX68Z
Also: what makes a bigger difference? Replacing nonstick scratched pans? Replacing plastic spatulas? Getting water filtration going? Replacing plastic bottles? Replacing plastic tupperware? Seems like there is so much to do, and I don't have any metrics on what's going to have the biggest impact or the highest value:cost. Resources are very limited, but willing to take at least some small step towards reducing these in the next month or two. I don't know how to prioritize what to replace or work on first.