Your message got buried a bit in this thread, but I still wanted to reply.
I presume you are using the NodeJS version of Nimiq. This one comes with a keytool.
should then do the job and present you with your 24 words that can be imported in the Safe.

While Lisk is based on JavaScript, it is not a web-based blockchain! In Nimiq, you browser is a real client to the blockchain, which can do the same things as any full node.
Or as we like to put it: browsers are a first-class citizen of the blockchain.
You can view Lisk rather as a JavaScript-based Ethereum competitor.

In the betanet, a wallet is implicitly created for you.  

I'll try to answer some of the questions (mostly the technical ones) raised in this thread.

This is probably best explained in the medium post concerning our longer term roadmap:
https://medium.com/nimiq-network/intended-use-of-funds-part-3-roadmap-1c966cdc0ec2

This is partly explained by the long term roadmap. But the main point is that we envision a complete ecosystem to grow around Nimiq.
And there comes another advantage of nimiq: Since it is written in JavaScript, one of the most prominent programming languages, everyone can participate!
I already saw a link to the blockchain explorer here, a project that was created independently by an interested community member.
Furthermore, we aim at keeping our code as clean and understandable as possible, so that some understanding of JavaScript and our public API suffices to build great web-apps around Nimiq.

Yes, as we outlined in one of our medium posts, we plan to partner with VISA payment services to create a VISA-to-Nimiq exchange.
But we are also looking into many more potential partnerships.

Just to mention one: One of our goals is also to facilitate over-the-counter payments via Nimiq.
As the ecosystem around Nimiq grows, of course, there will be plenty of other use cases. This is also something where we happily accept input of our community!
We are also implementing light clients, allowing a much faster synchronisation. So, there is no need for intermediaries anymore and the blockchain truly lives in your browser.

This question brings me to another great example of the projects that can be built around Nimiq.
Another community member already implemented a faucet, available here: https://faucet.nimiq.io

Yes, as the disclaimer states, test Nimiq can be reset at any time and will be reset before the mainnet launch.
But there is a bonus program: If you collected 1000 Nimiq, you can receive a Nimiq T-Shirt! Details about that will be made available soon!