Plastic bags kill at least 100,000 animals every year, according to some estimates. Not only do animals get stuck in the bags, they also ingest the material, causing not only death but also unnecessary suffering.
I have added my signature many places, in the past, in favor of reducing plastic bags and it's only resulted in the continued use of plastic bags, with an additional 10 cent fee, in my area. People sometimes use their own bags but many just pay the extra 10 cents. The result is that we still have huge numbers of plastic bags that don't degrade entering our ecosystem and poisoning birds, fish and other animals. In addition, now, because of the pandemic, many stores are not letting people re-use their own plastic bags or bring in their own canvas or cloth.
Everyone can do their own google search, but the following link to an Earth Eclipse article, sums up the ongoing, critical issues associated with the use of plastic bags;

https://www.eartheclipse.com/environment/serious-effects-plastic-bags.html
In addition to killing animals, the continued use of plastic bags is a huge contributor to climate change, which effects not just animals, but us. 

Here's also another useful climate change article:
https://www.wwf.org.au/news/blogs/plastic-waste-and-climate-change-whats-the-connection#gs.bb38wj
If all of these companies switched to biodegradable plastics, we might have a chance at saving those 100,000 animals every year from death and unnecessary suffering.

Please help me advocate for animals and slow climate change by putting pressure on these stores to use biodegradable plastic bags at checkout.

(Photo credit - https://www.worldwildlife.org/stories/what-do-sea-turtles-eat-unfortunately-plastic-bags )

Additonal related links...

How plastic in the ocean accelerates climate change....

A New Link Between Plastic and Climate Change
https://www.parley.tv/updates/2018/7/23/a-new-link-between-plastic-and-climate-change

https://i.dailymail.co.uk/i/pix/2013/07/19/article-2369792-0D44024200000578-516_306x283.jpg
https://www.dailymail.co.uk/news/article-2369792/Supermarkets-handed-SEVEN-BILLION-plastic-bags-year-despite-Camerons-promise-curb-practice.html

https://www.instagram.com/p/Bx0dobdA5YQ/?igshid=1bdngy6h9590y