If you aren't interested in learning to work on your bike, then a 40+ year old bike is a BAD choice. It will need regular tinkering, and perhaps some significant work to get going. To pay someone else means big bucks, and huge delays. Neither equates to time to ride and enjoy your bike.
"Nobody" is right; there's heaps of folks who get their first bike, know little to nothing, than equipped with their computer, some basic hand tools, and plenty of initiative, turn their bikes into daily drivers. If you are such a person, then, grab a camera, take lots of clear pictures walking around the bike and post them up. Ask questions in a new thread title, "First bike, first of 1,000,000 questions". You will get an enormous amount of assistance, help, and good advice. Probably even some helping hands.
You can do this, its easier than you think. And every possible answer to any question you have exists on this forum somewhere. So don't be shy, and don't spend your money when that can buy you nearly every tool you'll ever need to do it yourself.