Absolutely not. I've always had insurance due to the white collar nature of my job, but back when I worked in SC and I had BC and BS coverage, my deductible was $350 or so a year. In other words, NOTHING compared to even a standard ER trip. But still, when I felt under the weather I was not very likely to make a Dr's appointment if I hadn't used my deductible, just b/c who wants to spend $150 when you are probably going to be fine in a couple of days. I imagine that's even worse when you don't have "good" insurance or none at all.
True Story:
Now that I'm in Idaho, I still have BC and BS, but the copay is handled differently and it only costs $20 to go to the Drs. even if it's the first trip or the 10th. Being past 50, I go to the Dr. twice a year for a wellness check and any time I feel under the weather. It's a no brainer. Back in September I went in for my 6 month and have a new Dr since my old one retired. He noted that I had a high iron content in my blood. My old Dr. had noticed that 4 years ago and ordered a DNA type test for me, confirming that I had a recessive gene that caused this, but only one, so it was not something to worry about. My new Doc says he saw that on my records, but he wanted me to go to a hematologist just make sure that I wasn't getting Iron deposited in my organs (particularly the liver). So I went. The hematologist agreed with my new Doc and ordered an MRI of my liver, however, he also said that my old Dr was almost certainly, correct in that it was probably no problem. He also ordered a full blood workup at the time and a couple of days later that came back all clear as well. Then I got the MRI and he called me back in. My liver was clean, but they noticed a large mass on my right Kidney that looked like it could be cancer. He has a friend that's a urologist, called him on the spot and got an appointment for that afternoon and a slot for a CT scan on my whole body the next day. Turns out that it was a baseball size tumor. The urologist said that it was growing right on the blood supply for the kidney and that the entire kidney had to go whether it was cancer or not (although in his opinion, the odds were 85%+ that it was cancer. The "good" news was that it appeared to still be stage one and that it didn't appear to have spread past my kidney. So on November 12th I went in and got my kidney removed (that's why I haven't been on here a bunch as sitting at my desk is not that comfortable, but I'm actually back at work this week). It turns out that it was indeed cancer and it was pretty aggressive. They "think" the tumor was almost certainly < 2 years old but they got it all and none of the lymph nodes around my kidney were affected. So I'm "cured". no chemo or radiation needed as the CT scan came back clean for the rest of my body.
Point being is that I had no symptoms. My blood work was normal. My kidney function was fine. The ONLY reason I'm not blissfully puttering about with a big malignant tumor on my kidney is because of cheap preventative health care and paid sick leave that make going to the Drs. easy instead of a chore.