If you have a horse please, please give it a graceful retirement. When it is too old to carry you over jumps or along trails, when it can no longer pull your carriage or plow, when your children grow up and move away please treat them them like the faithful servant they have been.
Do not send them to a livestock auction or give it to “a good home” with someone who answered your ad on Craigslist. Good horses go to slaughter. Pretty horses go to slaughter. Pregnant mares go to slaughter. Colts and fillies go to slaughter. Purebred horses with papers to to slaughter. Faithful servants go to slaughter.
It is a terrible fate to which we consign those who serve us without complaint. If you can no longer keep your horse there are many charities that can assist you in finding a new good home.