The reason Dogecoin could fail in the future

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Dogecoin could fail in the near future due to its outdated blockchain technology.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.

Many influential people and investors offer us advice on investing in this coin 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 doge failing or Elon Musk support for it make this coin increase?

News Source - https://coinpedia.org/price-prediction/dogecoin-price-analysis/