Its usage as a currency will decrease as years go by. The more a Bitcoin will cost, the higher the no. of owners it will be and the higher the no. of customers, the more congested the mempool will be. All in all, I don't see daily usage as a selling point of Bitcoin since as far as it looks, the situation of Bitcoin payments is only getting worse in time.
Actually the congestion seems to get worse not necessarily by the number of owners or the the price, instead because of the price
variations.
Everything gets awful when the price does big changes and the mempool starts clearing up when the price stays at low variation / boring.
Hoping that some universities will inform or implement subjects about cryptocurrencies so that those curious college students will have an idea about it.
This will most probably happen (if it's not happening already). Bitcoin is 12 years old, it's about time for that. I know that some school teachers do introduce kids to Bitcoin (some teachers even came to this forum asking questions). And there are quite some interesting directions to cover, from the financial perspective (and also trading) to various technical topics (blockchain, addresses, spending..)