Does Crypto have a lot of problems in 2021?

As a keen observer of the cryptocurrency market, I've noticed a string of challenges and concerns surrounding cryptocurrencies in 2021. Have these issues truly escalated to significant levels? Are there regulatory challenges, security breaches, scalability issues, or volatility concerns that have taken center stage? How have these problems impacted the overall sentiment and adoption of cryptocurrencies this year? Moreover, are there any potential solutions or strategies being explored to mitigate these problems and ensure the sustainability of the crypto ecosystem? I'm curious to understand the current state of affairs and the challenges the industry faces moving forward.