I gave a friend a raspberry pi a while ago and just this last week they asked me to come and set it up with Pihole for them. They’re very happy to not have ads on their TV anymore. The only hiccup has been that their network connected cat litterbox (lol) doesn’t tell them when the cat has pooped anymore.
An infinitely growing blockchain will inevitably fail by centralizing. Crypto-currencies as they exist today are doomed, but the protocols and tech created now may hopefully inform the design of something that is useful as a currency.
Also, high transaction fees make it useless for small (normal, everyday) amounts, so it can only be used as a store of value. It’s really more analogous to gold or a stock, with the one significant benefit that it’s harder to steal than gold and can’t be lost stolen institutionally.
Reminder that Cable and Broadcast TV are the same quality now, so if you (or your parents) watch TV, you can set up a box that just connects to the HDMI port and captures everything. It even gets metadata so you can see what channel the best stuff is on, like PBS kids. Total cost is around 100-200$ and after that it’s free.