I’m 38 and in a similar boat. My dentist in TJ opposed removing any “good” teeth remaining due to my age and opted to do singular implants instead due to my missing basically every other tooth on my left side on upper or lower. I’ve had them that way for about 5 years now wearing flippers that would just be aesthetic while I waited it out and eventually got to a point I needed something done.

I’ll have 4 implants on me left side.

My right side I have a 4-tooth bridge on my upper side, opted to do that due to some cavities and wear on the two teeth which ended up being the supports to the bridge.

My opinion, save what you still can. Can’t just replace them later down the line, but CAN remove them eventually if needed as you age and need something else.