I first brewed back in the 90's. I did extract only and brewed about a dozen batches before my son was born and just didn't have time. I stopped a lot of hobbies then: sailing, brewing, golf, etc. My beers back then turned out pretty good. I enjoyed drinking them and friends/family who had it liked it. I had requests for more.
Then in 2013 I had a hip replaced and my co-workers gave me a list of things to do while I was out (6 weeks). One was brew beer, so I got a Mr. Beer kit. It was awful.
Then, Dec of '16, I got a "brew day" from my wife as a gift. Spend a day at a brewery brewing a beer of my choosing with the head brewer. In talking with him, he had a nice collection of home brewing gear that he wasn't using anymore, so I got pretty much a full all grain brewing setup, including kegs, carboys, burner, kettle, cooler MLT, immersion chiller and all the other essentials for a couple hundred bucks.
Brewed my first all grain batch in March. It was awesome and I've been hooked ever since. I spend at least a couple hours a day reading about brewing, techniques, tips, problems and their solution, etc every day.