This is unquestionably my experience also. I had zero exposure to tech in high school (well … I remember one kid in my senior year had a TI SR10 calculator - ’73). When I moved to university it almost instantly became the centre of my career in one form or another right through to my final teaching stint. Confluence of timing and mindset I suppose.
But the OP’s question looks to smaller, everyday, almost trivial things, so …
Consumer sous-vide: use it almost every day - convenient, precise, stress-free
Super-automatic coffee machine: good easy reliable coffee - the Jura gets used every day
Internet: it’s terribly cliché and it’s not trivial but the world I live in now would be unthinkable to my 17 year old self. Books, movies, encyclopedias, maps, communication - all at my fingertips all the time. Science fiction.