Don't worry if you have no issues now. I had peeling paint around the gas filler for about 3 years. Then the paint starting peeling off the driver and passenger window frames. This year the paint started peeling off big time around the side cargo doors. That was the catalyst for me to get the paint job since I plan on keeping it. I have to say the paint job cost a lot less than expected ($2,825 CAD). I got 3 quotes ranging from over $8,000 to about $3,000.
So, if you have no peeling now, you are probably good for a long time.