I have had quite a few squamous cell carcinomas and basal cell carcinomas. These are the "good kind" of skin cancers with melanoma being the "bad kind". 'Quite a few', in my case, means about a dozen surgical removals, some of which were Mohs surgery and some just plain depending on location. I have had many dozens of smaller spots frozen with liquid nitrogen. Unfortunately this is not extremely rare to have many spots of these cancers. I have known people with just as many or more than me.
In general most of these types of cancer are slow growing and most of them are not very invasive. However there are exceptions. It has been best for me to get these removed surgically fairly soon after they are identified but no real urgency or panic. It has been best to go in once or twice a year to have all of my skin visually checked by a dermatologist. They know what looks suspicious and they are able to identify the little spots for freezing before they get big enough to require surgery.
The only thing that bugs me is when I get a bigger spot that looks just like previous spots that were cancer and required surgery. This new spot to me is obviously cancer and needs to be removed but they still insist on doing a biopsy to verify it. This is great for insurance purposes but it sucks for the patient. I have to heal from the biopsy which confirms it is cancer and then schedule the surgery to remove it and then I have to heal again from the surgery. And healing from the biopsy is usually worse than healing from the surgery. This does not seem necessary to me when it should be possible, given my history, for the dermatologist to identify the cancer with enough confidence to go straight to the removal. They could do pathology then to confirm it is cancer for insurance purposes.