Hey there, Christina!
Welcome to the Community! Definitely a great place to gather some input regarding anything about the platform!
With regards to your inquiry, it is possible to create an ADA compliant store using Shopify however, this is a matter that we refer you to your own counsel as every jurisdiction is different.
It is the your responsibility to ensure that your storefront complies with all applicable laws and regulations in the your jurisdiction and in the jurisdiction of each of your customers, including all laws and regulations which relate to web accessibility.
You can reach out to one of our Accessibility Partners for more assistance. These Partners specialize in auditing and remediation of web sites to meet WCAG 2.1 AA compliance:
- Accessible360
- Deque Systems
- eSSENTIAL Accessibility
- Fable
- Level Access
- Tenon
- The Paciello Group
- UsableNet
Also, at this time, Shopify’s free OS 2.0 themes (including the Dawn theme), paired with Checkout, is Shopify’s most ADA compliant offering.
Shopify Checkout has gone through a full audit and remediation project to meet WCAG 2.1 AA. Remaining issues are still being addressed. Checkout’s accessibility compliance level is high and continues to improve with time.
Shopify’s free OS 2.0 themes are recommended as they have gone through a full audit + remediation process to meet the WCAG 2.1 AA standard. This means the theme’s design and code do a lot of heavy lifting in creating an accessible experience by default.
Examples of these details can be found in the blog post, “7 Tips to Increase the Accessibility of Your Debut Theme Shopify Store”.