I have about three teeth that aren't root filled, pulled or Crowned. I have a bridge and a partial denture.
It's the western diet - high in sugar (soft drink and 10+ cups a day of coffee with sugar did most of mine) , and quite a few impacts from playing hockey over the last 35 years including a broken jaw. Add in a couple of bike crashes and there you go. Nothing much left.
Super expensive but get a root filling or crown if you can. Much better than pulling it both for your health and the rest of your teeth. Once you pull one, there's more work being shared by the others and it cascades the more you have out. Obviously you can get a denture or partial.
In Australia dentists can write prescriptions for antibiotics etc and can pull your tooth if they see fit. No need for a referral unless it's for wisdom teeth, even then they can do them in the chair if they're not too bad.