

I am not that much into tech, but that reads like this being more of a gimmick and a niche. It is great to be able to adapt technology to ones need, but this seems to be something that average users do not think of and is far beyond detailed customization.
That said I think getting infantilised by the manufacturer or vendor, however, is annoying. In contrast curiosity and play instinct can be fun. Having fun is possbible even by being sufficient. I watch older television series, play older games, read older books. I have so much to experience without a subscription to streaming service, buying the newest gaming consoles or computing with the newest devices.

The first one I registred back then was uncreative yet convenient: My full legal name. I like to advise almost anyone to do so.
For all the places where you do not need or want to reveal your identity you can use something harmless website3001 (or just any random number)