I guess being an eLearning architect for a Fortune 300 financial company which is nearing its 100th birthday, a Fortune 50 device medical manufacturer which is 130 years old, a global training provider, a Level I Trauma Center, beta tester for the Tier 1 eLearning development companies since 1995, eLearning conference speaker in the US, UK, and Netherlands, and 30 years in the industry isn't enough for noobs like you. Try working for an organization which is regulated by one or more entities including the FIO, NAIC, OCI, FDA, EMA, PDMA, FCC, Joint Commission, and/or DSPS, and let's see how flippant about PII you are.
All legitimate national and multinational organizations use multi-tiered environments for development and testing, loaded with dummy data, prior to deployment to production. If you don't understand the DEV/TEST/UAT/STG/PROD progression and SDLC, you can just sit on your hands at this point.