answer it seems there is easier onboarding on the roadmap / in the works. you are very right that those whomever already working with metamask or phantom should easily be able to be onboarded :)thank you for your extensive answer. as I can decrypt from @gandalf's
For the time being, it would be great to have Keystore support for more DAPPs. There should be at least a million people who already have a Keystore.I saw from @howo's meeting summary that MetaMask support is in progress. Since INLEO is working on few more wallets with a FOSS release on the way, it would be definitely possible to see some collaboration and rapid development.