My friend bred a foal for exactly the same reasons. The older mare had a horrible birth, my friend was worried she was going to die, and it was only through the quick intervention of an on-site more experienced person that she didn’t. The foal grew into a rather unpleasant individual - it ‘played’ with a young person (exact details not given so as not to out anyone involved, but should be noted neither the owner or the young person was at fault) that ended up in a legal case for compensation for a substantial injury to the young person. The by-then grown up foal was too scary for her to ride, and she ended up giving it away to a trusted third party who still has it. As far as I can tell, it is still a problematic horse.
Otoh, another friend has bred 2 foals for the same reason, both problem free, both sweet young horses. She had not intended to sell either, but the cost of keeping both mares and 2 foals has been much greater than she anticipated, and she cannot afford all of them. One mare is old now and holds a place in her heart, the other is injured, so the foals will be sold. One of the foals is nearly the ‘piece of its mother’ she was hoping for. It is the wrong colour and the wrong sex (compared with if she were buying a horse) but is the right size and temperament. The other is a lovely horse, but is also the wrong sex, wrong colour, and has grown far too big. This friend is a fabulous horsewoman, but fails to see that her horses are so lovely because she has a good eye, buys a nice natured one, and then handles them extremely well. By default, any horse she could buy would be just as nice, and she doesn’t see much of the mothers in the foals she has bred. But now she currently has nothing to ride, (one too old, one injured, two too young) despite paying for the upkeep of 4 horses, and this is leading to depression for her.
The question about whether to breed or not for personal and sentimental reasons raises a lot of questions.
- do you have the time, money, resources and knowledge to keep 2 horses (mother and foal) for years, giving them both the healthcare, education, stimulation and exercise they need? You talk about a non ridden pet, but you will effectively have 2 non ridden pets if you have the mare as well. Keeping expensive pets is a completely different hobby to riding!
- are you prepared for your mare, or the foal, to die during the process? Every year my Facebook is filled with devastated owners looking for a foster mare/foal who had no idea breeding was such a risky business.
- do you want a piece of your old mare? What will you think of the horse if it is nothing at all like your old mare? What if it turns out to be as far from your old mare as you could imagine and you actually don’t like it? You can choose your friends, but not your family and all that. Both friends mentioned above felt a huge amount of disloyalty to their mares for wanting to ‘get rid’ of the youngster. One so much so she gave the horse away, and accepted the loss of all the financial input as collateral damage.
- if you want another horse once your mare is old, are you prepared to wait out the time when you are paying for multiple horses but not able to ride?
- is your mare suitable for breeding from? Really? What makes you absolutely sure? Is she honestly so sweet natured, so conformationally perfect, that she will produce a good foal? And do you know enough about the stallion, who will pass on all of his traits too? I understand about wanting a piece of your mare. My children’s pony was a breeding stallion before we bought him, and I actually bought one of his offspring as I liked him so much. But he was already mature and being ridden - I could see what I was getting.
All of the above is just scratching the surface. Every day I see horses that I think ‘who the heck bred that?’ There are a lot of lovely horses out there, and there are a lot of not lovely ones. I am not saying any of the above to put you off doing it, but to ask you to really think about what you want and whether you have the resources to do it. It can be a wonderful thing, but that assumes all goes well. I’ll leave you with another example - a third friend who I saw at the weekend did exactly the same as the other 2 friends above, and what you want to do. Her mare is extremely rare, having been imported many years ago from a very long way away. She is one of very few in this country, from a breed which is rare in the world. She bred a foal from her, she was an older mare. And last weekend she rode the foal in his first competition, the thing she has been building up to for the last 6 years, and won. Everyone (me included) was delighted for her, because this has been a long and hard journey for her, and she now feels like her journey is finally getting to the good bit. But it’s been long to get here!