Why isn't sheep ice-cream popular?

If there's two things we have in abundance here in Wales it's sheep and ice cream. Yet I've never had ice-cream made with sheep milk. So did a little Google to see if it was possible and found one ice cream parlour here that specialises in it plus a few more in other countries. But it's never become mainstream.

So why isn't sheep or goat ice-cream popular?
Why isnt sheep ice-cream popular?
Why isnt sheep ice-cream popular?
Why isn't sheep ice-cream popular?
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