Doge could fail because -
Dogecoin could fail in the near future due to its outdated blockchain technology. The Dogecoin blockchain is built on the Litecoin blockchain, which is based on Bitcoin's Blockchain.
One of the main issues with old blockchains is that they're not scalable. They are unable to manage large volumes of transactions without slowing down or mistakes.
This is undoubtedly one of the main reasons that do not attract me and the majority of investors to Dogecoin; in addition to the fact that Dogecoin has no technical benefit or an actual project, it is originally a currency for jokes and a project without clear goals, so it may fail in the future and be replaced by one of the other projects. Still, through Billionaire Musk's support for Dogecoin, I believe that his support is the lifeblood of this meme coin, and this is why thousands of investors turned to invest in it despite all the negatives that follow from that. Investing in Dogecoin needs a lot of courage and excess money because it is an investment full of risks, although there is a possibility of earning huge returns.