Firstly I would say before the evolution of this web 3 many didn’t believe we could actually do stuffs in decentralized way mainly because that is what the government made us to believe or the technology as at then shaped human mindset to. But that didn’t mean they weren’t people seeking anonymity because even on social medias there are accounts created by individuals with informations or KYCs that are either wrong or has nothing connected to them.

In the case of why there was less adoption of decentralized systems like bitcoin but mass adoption towards the social media I would say it is government policies because they many that believe without government regulating anything it seems more like a scam and when anything goes wrong they could have someone or some body to hold accountable for and that is why we see many centralized platforms like exchanges today. Also bitcoin adoption will be slow compared to the other platforms because it involves money and that takes a longer time for just anybody to entrust there funds to a new platform.