I'm just not sure it would be any more "enjoyable" than it already is for anyone- new in the game or seasoned. Isn't it taking away from the game... Don't you think?
When a novice or a pro holes a putt from 6 feet on a traditional size cup, the difference might be just their reaction. One has done it many times before and may act like he's done it before as it should be, and the other maybe more expressive about it. Nevertheless, they are both in celebration in their own way.
In the same scenario with a 15 inch cup, I think you'll experience less.... yup, it'd be silly to celebrate a no contest against the course.
One thing is for sure in golf- the range from power to finesse application are all learned and honed to a skill level. On top of it, it is played outdoors, and therefore nature will be part of it, they'll play, too, or should we say, we'll play in that natural condition.
In the question about "enjoyable", I think everyone knows that it is all about how much you prepare yourself for your rounds ahead which would be a test on a given course; what research and sources have been applied for the preparation; and also the commitment we put in.
I really think that if golf was a sport that anyone can walk up to and play it well the first day, first, it wouldn't called golf, but it wouldn't be as popular as it is today. Take TNT's answer for instance. Once anyone have figured there's nothing to it, I'm sure that'd be the end of it.
For anyone who aren't able to put in as much the efforts to develop a skill, golf employs a handicapping system where it can be used to level the field or a competitor/opponent.
It's just the way golf is imho.