It's only a concern (for me) when they're estrogenic and perhaps a "big concern" when the estrogenic products are used with kids. Not all plastic products have high levels of it.
Yes, we can use glass (not sure how that would replace this stretchy product very well)... or perhaps on top of that we can find out which plastic products are estrogenic or not instead of living in ignorance?
You may or may not be concerned about it and even find my concern humorous, but the majority of the public is concerned and that's why people have been seeking BPA-free plastics in huge numbers.
So much so that BPA is banned from baby bottles and cups for young children in California (along with some EU countries) and nationwide most companies have removed BPA from these products (and many more plastic products nationwide due to consumer demand).
Grab your plastic cup right now and I bet it says BPA-free on it. That's not just a coincidence.
Unfortunately many who aren't concerned and even defend BPA as safe don't realize that the industry studies are flawed and didn't take into account how radically different the levels of estrogenic activity are from product to product of even non-BPA products.
They also skewed the results for industry by using lab animals more tolerant of estrogenic activity. And, the FDA is seriously flawed in its industry-appeasing methodogies as well. However, independent studies have shown that some BPA-free plastics can have even more estrogenic activity than BPA products do.
Many people who are concerned about BPA products will purchase BPA-free products ignorant of the fact that it may be even worse without their knowledge.
The fact that the plastic industry has relied on the same industry scientists and consultants who defended Big Tobacco should make us all take pause as well.
By, yeah... hey, smoke up, Johnny! Cigs are harmless in low doses...
Perhaps, but I'm not so sure. Only some EU countries have banned BPA, much less the plastics that are advertised as safer simply because they're BPA-free (but are actually worse).