It is not necessary to create your own blockchain now. Many projects successfully exist using the Ethereum, TRON or Waves blockchain. Take, for example, the cryptocurrency Yubsra GLOBAL, so beloved by me. This coin exists on the Waves blockchain and has a very developed service infrastructure and a developed community. And all this on the Waves blockchain. Therefore, today it is much more important not the technical component of your blockchain or not, but what you offer your users. Therefore, it is quite possible that it makes sense to focus on the idea of the real use of cryptocurrency (as, for example, they did in YUSRA GLOBAL) and not on the technologies of another super high-speed blockchain.