Blockchain has extremely limited use cases (especially when compared to the hype), but it is great to see that it is resulting in widespread interest in applied cryptography in general.
But there is an entire world of crypto outside of proof-of-work and I'm glad people are more interested in these more useful parts of crypto now.
In 10 years, the web went from a curiosity at CERN to transforming the global economy, and blockchain applications have much lower barriers to entry than 1990s computer hardware or network pricing. Digital computing went from Alan Turing’s papers to being a decisive factor in WWII over the same period, and similarly had much greater entry requirements.
For all other use cases it is probably the slowest and least trustworthy database you could choose.