Dogecoin gained popularity due to its low cost as well as its welcoming community. Its community of users behind Dogecoin is involved on various social platforms, and it gained popularity specifically from Reddit.
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Dogecoin could fail in the near future due to its outdated blockchain technology.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.
Investors advice on investing in Dogecoin now as this is being the best time to purchase doge. Dogecoin prices are expected to rise as we approach the annual close. The increase in price fluctuations may eventually assist the price to soar and as per Coinpedia doge price prediction it will close the year at $0.118.
Are these cons going to result in dogecoin price failing or Elon Musk support for it make this coin price increase?
Dogecoin's price falling in the future? Yes. But even so, I think Dogecoin will survive because of its decentralized and censorship-resistant nature. Before Elon Musk began supporting the cryptocurrency on Twitter, Dogecoin already had a respectable amount of supporters behind it. If Mr. Musk gets bored of DOGE, the community will help prevent the coin from collapsing in its entirety. Dogecoin may not scale towards millions of people worldwide with its on-chain capacity, but it's still a fun cryptocurrency that doesn't "break the bank".
My guess is that developers will port "The Lightning Network" into Dogecoin, once network usage increases by a large margin. As far as I know, there hasn't been any network congestion yet, so scaling off-chain would be something of little concern these days. Who knows what would be of DOGE in the future? Just my opinion