Does anyone know when a doctor suggests that a colonoscopy should not be performed due to age and what age?

Thank you!
86 years old, 4 years ago doctor removed pre-cancerous polyps. General health OK, has Parkinsons.

I’ve turned 50 y.o. this year, conscientiously had a physical exam (all OK) and routine referral for colonoscopy screening. I have no symptoms of illness, am pretty healthy; but what I expected to be a routine colonoscopy actually found many polyps and prompted Dr. to make a referral for labs. Dr’s report said "The large number and variety of polyps is unusual." and that "genetic testing is indicated." Dr. had me back twice more, each time looked around in my colon and removed many polyps. The three colonoscopy procedures during past four months have found about 50 polyps, mostly pre-cancerous "adenomas" – tubular and tubulovillous per pathology reports; but no dysplasia nor carcinoma at present). Most polyps found have been fairly small, a couple 1.0-1.5 cm. Still some small
sessile polyps remain at present. After 3rd colonoscopy Dr. counseled that consideration should be given to genetic testing, "and ultimately colectomy may be needed." Dr. referred me for "FAPKM" genetic testing, they drew my blood and have sent it off to Mayo Clinic. This "FAPKM" testing seems pretty specialized – they are looking for a specific genetic mutation that might inhibit my colon from suppressing polyps. I have no known family history of colon polyps, no family history of colorectal cancer. Everything I’ve read seems
to indicate that a colon with 50 pre-cancerous polyps is serious,
whether the cause is genetic or "sporadic," and leaves me with the impression the colectomy option may (eventually?) be more likely needed than not.
While I await test results I wonder, can anyone here explain likely range of outcomes for someone with my current condition?

I’ve turned 50 y.o. this year, conscientiously had a physical exam (all OK) and routine referral for colonoscopy screening. I have no symptoms of illness, am pretty healthy; but what I expected to be a routine colonoscopy actually found many polyps and prompted Dr. to make a referral for labs. Dr’s report said "The large number and variety of polyps is unusual." and that "genetic testing is indicated." Dr. had me back twice more, each time looked around in my colon and removed many polyps. The three colonoscopy procedures during past four months have found about 50 polyps, mostly pre-cancerous "adenomas" – tubular and tubulovillous per pathology reports; but no dysplasia nor carcinoma at present). Most polyps found have been fairly small, a couple 1.0-1.5 cm. Still some small
sessile polyps remain at present. After 3rd colonoscopy Dr. counseled that consideration should be given to genetic testing, "and ultimately colectomy may be needed." Dr. referred me for "FAPKM" genetic testing, they drew my blood and have sent it off to Mayo Clinic. This "FAPKM" testing seems pretty specialized – they are looking for a specific genetic mutation that might inhibit my colon from suppressing polyps. I have no known family history of colon polyps, no family history of colorectal cancer. Everything I’ve read seems
to indicate that a colon with 50 pre-cancerous polyps is serious,
whether the cause is genetic or "sporadic," and leaves me with the impression the colectomy option may (eventually?) be more likely needed than not. While I await test results I wonder, can anyone here explain likely range of outcomes for someone with my current condition?

http://www.webmd.com/colorectal-cancer/guide/treatment-stage
does the above article mean that no doctor will remove a colon tumor (only polyps) during a colonscopy?
here is the correct link…………..

http://www.webmd.com/colorectal-cancer/guide/treatment-stage

I guess this answers my question unless others interpret it a different way.
Stage 0
Stage 0 colon cancer is found only in the innermost lining of the colon. Treatment usually involves one of the following:
Polypectomy or local excision to remove the tumor and a small amount of surrounding tissue, or
during my 1st test in 1995, pre-cancerous polyps were removed according to the doctor and I’ve been told that not all polyps are pre-cancerous. Not sure if they took a sample, ran it to the lab very quickly and then came back and removed them as being pre-cancerous. Now sure how they knew they were pre-cancerous. The doctor did not tell me about this for 5 years and I feel my patient rights to know were violated. I’m trying to figure out how to be told what is being removed this time so I can make the decision as to remove or not to remove.
My current question is:
If my doctor finds more than polyps, even a stage 00 tumor, can and will he remove it during the colonoscopy or does it require a second procedure?