so funny...how you all have to worry about the cold during winter. Down here, this is the time we let our horses run outside and pasture them for as long as possible. Come summer, it is vice versa...we are worried about protecting out little ones from the heat and humidity! You guys can relax and let your babies enjoy the weather!
Anyway...I am sure that if they are born and raised in whatever weather...they will be fine. Both my minis are Florida born and bred and when it is hot and humid, I remind myself that is all they know. Same with you guys...your horses are used to the cold and they have those thick coats so they are fne.
All our minis are lucky to have us as owners...we actually *CARE* about their comfort.