I learned how to gas weld when I was 14. I am now 66. I still gas weld stuff now and then. In the early 80s I decided to take a welding class at night just for fun. I wanted to learn how to arc weld. After passing the stick welding tests I moved on to TIG. Virtually all of my welding since learning how to TIG weld has been TIG until about 20 years ago when I bought a small Lincoln MIG welder. A few years after I bought that great little machine I took a 1 day MIG welding class. Which really helped my MIG welding and opened my eyes to how much a MIG welder can do. I have never regretted taking the welding classes. Anyway, I think you should take a class just so that you can try out the different welding processes. As a bonus you will probably find out that welding is fun. Especially when an instructor guides you so that you have success quickly. A good instructor is great. I know, folks will say you may not get a good instructor, they were self taught, and so on. But really, most instructors are good, that's why they have the job. And the place you go to learn welding will probably have all types of welding machines available for you to try. You may decide that stick is good enough for you. Or that MIG is what you want to do. Or that the huge flexibility of TIG really tickles your fancy. In the class you should be able to see good welds in all the processes. Gas included. You should be able to watch close at hand good welding being done. Most everybody these days who is beginning welding chooses wirefeed welding, which includes fluxcore and MIG welding. No wonder, it is an easy process to learn. Not as flexible as stick or TIG, but most folks don't need that flexibility. My opinion is that you should most definitely take a class and learn how to weld. Once you have this skill you will find all sorts of stuff to weld. Like any skill it takes practice, but the practice is fun. The satisfaction of sticking a couple pieces of metal together is really nice. At the end of the day remember that welding is fun. Just plain fun.
Eric