Basically, it's like using computers.

Back in the 1970~80s, you would have to be a real geek to know to use one.
Fast forward 20 years and by the 2000s, it's a household appliance even grandma might know how to use.

Since it'll take until 2030~2040 or so for all bitcoins to get mined, bitcoin surviving meaningfully means the infrastructural issues should had been ironed out and it won't be a geeky thing anymore. Just like how laptops and PDAs aren't a geek thing since like 10 years ago.