My oldest brother was one of those straight-A students. He could do just about anything. He was quite a bit older than me, but in high school he got a great after school job working for an electronics place (TALLY), and was making huge money for a young guy... he became an engineer for them.
In his spare time he started building speakers, and amplifiers and pre-amps (before solid state crap), in the early sixties. My mom was a professional musician, and my dad, well he liked Louis Armstrong (really loud). ...So my brother built some huge speakers and we set up a "Music Room" in the house. Big room, big speakers, nice turntable and (tube) electronics. He also built systems for his college classmates.
He was killed in car wreck a few years later, but he really got me into speaker design, and music in general, and I just recall him staying up till 2 or 3 in the morning soldering away on his amp & pre-amp designs... and the look of jaw-dropping - awe on my fellow grade schoolers' faces when I invited them over, and cranked up the Kinks "You Really Got Me" on those giant speakers as loud as I could, before the folks came home, and that has stuck with me.

Music was ALWAYS jamming in the house.
When the British Invasion hit, I was totally hooked on music - Beatles, Stones, Yardbirds & Kinks etc.
I started building speakers (wasn't intelligent or patient enough to build amps or pre-amps)... Got a job in a crappy speaker factory, right out of high school. Worked my ass off there, ended up running the shop at 18 --- 42 employees.

I got into a hoffific car wreck, quit the factory.
Healed for a while at home.
I soon thereafter won a law-suit, got a huge bag of money (AT THE TIME), started a really cool little Hi-Fi store, and built speakers, sold the old (GOOD) Marantz, Phase Linear, Crown, Quatre, Yamaha & some MacIntosh (sideways of course) etc.
Did OK, (actually, barely scraped by, but always had money for rent, beer & pizza, and the occasional visit to the local topless clubs)!!!

...Then I got hired by Bob Carver @ Phase Linear (before he did "Carver" & "Sunfire"). Worked with Bob on a very unusual (at the time) speaker set-up --"The ANDROMEDIA III". Took at least 700 watts to work properly!!!
One of the first, if not THE first sub satellite system. Finished the project, left and worked for a Speaker place in Seattle, then a couple very nice Hi Fi shops... started the Custom Division at one of those places...

Got pissed one day and quit, took a better job (I thought), then worked for a handful of small Custom Shops... then said "screw-it" and started doing my own installs and have done that off and on for the last several years occasionally going back to work for what I thought were good small operations, that well, didn't work out.
Business is Up and Down... I'm getting lazy in my older years!

IF YOU DO YOUR OWN THING FOR A WHILE - IT IS HARD TO GO BACK TO WORK FOR SOMEONE ELSE!!!!!!!

But to backtrack a little, the things that inspired me:

My Brother's interest in speakers & electronics & a Musical Household.
The Beatles.
The first time I heard Klipsch "KornerHorns" with a Pair of Phase 700 amps, playing "Dark Side of the Moon"--- That was the magic moment, when I decided that instead of going into art -(commercial art), I'd stick with playing around and selling stereo stuff!
Realizing I could get by selling and installing "Music Systems" and later the whole Video thing.
Later, realizing I don't know anything else!

If you like it, do it, and, if you stick with it - things will work out for you - (usually), the only danger is doing something you love for a business can turn it into a business, and the passion for it can go away... But what the hell, huh?!!?

Whatever keeps you in shelter, gas in the car, beer (non alcoholic now, for me) and Pizza)!!!