Do I really need to get an implant?

There is a regular dental clinic called Seok Dental Clinic from the beginning.

The reason I chose this hospital is that I had received treatment at another hospital, but since I was told early on that I needed implants, I was hesitant because I wasn't familiar with implants about ten years ago. I visited Seok Dental Clinic to seek treatment at other hospitals as well. The doctor told me that I didn't need implants yet and that it was best to keep my own teeth if possible, so they didn't try to upsell me. I have been a regular patient for over ten years. But now,

I suggested extracting the tooth and doing an implant if you are sick, but since about two years have passed without any pain and time has gone by, I am seeking your opinions.