

I would argue against this stance, but not completely. The need for decentralized authorities only comes about due to a lack or trust or failure of the custodians of the product.
From your example, you could turn concert tickets into verifiable tokens (I do think this would be a good idea), and it would solve a lot of after market sale and validation issues. The only reason we have these issues in [checks current year] is because monopolies like LiveNation/TicketMaster have so throughly turbo-fucked the system that venues and customers cant do anything about it.
IMO, blockchains are a cool concept, and I love that cryptography is now a common topic of discussion because of it. However, its a solution looking for a problem and the problems up until this point are manufactured by the people selling the product or straight up ponzi schemes.
Seconding the home lab / micro controler project. A bit of research and you can get most things (especially shitty IOT crap off amazon) to dump their firmware and let you go digging around in usually lazy code. (A friend and I took apart an automated water bowl for a cat the other day, took a few hours, but we now have the tools and know what to search for on the next time someones shitty internet enabled fish feeder dies)
The reason is that in [current year], knowing stuff is great, but knowing where to find the info you need is more important. Thats why AI is taking off like it is. Its users ask in plain text for answers to things, the resourceful people only use that as a tool to find what they need not the complete answer(Also keep good notes. So you only have to find something once).