I just turned 23 last week and the OP gets under my skin a little bit, partially because I have a hunch its directed towards me.
I have been drinking beer since my 21st birthday (that's the official story, at any rate), and I've had such a broad exposure to beer compared to the majority of my age who I'll hang out with at a craft brewery only, to my horror, to watch them order something like a PBA or a Bud while I indulge in the magical elixir that tastes like someone's achieved dream. My love for beer started early, and coupled with a love of the art of food, I was quickly able to develop a taste for it and find each beer's characteristics, flavors, strengths, weaknesses, etc that I loved, didn't like, and so on and so forth. I loved beer so much, that I decided to go out and buy a brewing kit.
If there's ever been a story of love at first sight, it would be written about me and my brewing kit. I've never had so much fun in my life making beer, and I've never been able to feel truly accomplished every time I open a bottle and drink something that I created. The entire process has been fun, even though I take it extremely seriously. I've built a library of beer-related literature and have brewed a number of beers over the past year, of which I've been a perfectionist but can't say that I'm perfect. I will most certainly agree that, yes, I am not near where the older, more experienced brewers are on these lines.
I quit my job at a bookstore (a year ago this May, actually) to start my own company, a managerial services corporation, which then acquired a contract to operate and staff a car rental agency. I have been working 7 days a week, 9-12 hours a day, since May 2012, and I don't see an end in sight anytime soon.
The largest battle I've had to face was lack of respect. Despite wearing a suit and tie every day, using "sir" and "ma'am" to address people, shaving, and being extremely mature and professional for my age, I get the same response everywhere I go: "But you're just a kid." I got that when I told my parents my intentions to go into business for myself, I got that from the State when I filed with the Secretary of State, I got it from every person and department I've interacted with since, and still do. At first, it got on my nerves, and while in a lot of ways it still does, I've never let it affect what I do and what I aspire to do.
I aspired to go into business for myself, and I'm succeeding (a college dropout, too, I might add). I have some debt from the startup costs, but it's nowhere near the exorbitant amount carried by many freshly graduated college students. My original intention was to start a brewery, but I realized and understood from the very start that a. I lacked the expertise, b. I lacked the business know-how, c. I lacked the finances and d. It would be a long process.
My goal is to open a microbrewery before I'm 30. Period. It's going to be a long road to get there, and I'm spending a lot of time working extremely hard at making a recipe that I can call my own, while figuring out the logistics and planning of it all. I'm drawing, drafting, designing, formulating, calculating, and factoring in every little detail that I can think of, especially the pitfalls, because I know they'll happen. Oh, and let me clarify, I'm doing all of this as preliminary planning, because it's going to be years down the road before I even take the business plan I'm writing and place it on a banker's desk to ask for a loan.
I'm sorry, but all of the pessimism and ridiculing, all of the nay-saying "well you're just a kid," that is all fodder that makes me smile and nod and say an internal "F*** you and watch me succeed." Yeah, it's a hard road ahead. It's been a hard road since I started my current career; but I don't believe in taking the easy one.
So go ahead and rant about how you dislike us young whippersnappers are aspiring to do things with our lives. While you're doing that, I'll be taking steps to prepare for my own future.
Cheers!