Not that hard, it just take time and patience.
I started playing golf last year. I wasnt good at all, but i then started playing 9 holes every week or every two weeks, and also going at a golf range to practice my shot, and now im doing well.
So if golf difficult? No. It only take times and concentration. But sometimes, when you are not in good shape, it can be hard. Im not on the best shape and when i walk a 9 holes at 30celcius, it kills me.
If you are working on a golf course, its a good way to start since you probably can practice easily, and can ask your collegue for tips/advices.
People will say golf is easy because it actually looks easy. When you watch tv and a guy drives 400 yards per shot, ofc it looks easy. But its way more calculated than that. You need to calculate wind, precision, ball effect, your feet, etc...
Ask someone who think golf is easy to do a 9 hole when its 30celcius. He will give up after 2 holes. Not because it would be boring (ofc he will say that), but because he wont be able to even touch the ball. So it would annoy him.
And golf isnt that expensive, idk why it would be, you can be good even with a cheap set