Why is ice cream universally popular?

Most places have local desserts, cakes, biscuits etc that are well known locally and although they do get eaten elsewhere never in great amounts. But Ice cream seems to be different, not only are there umpteen brands in the shops there are lots of kiosks and parlours plus every restaurant seems to have an ice cream menu.

What makes ice cream so universally popular?
Why is ice cream universally popular?
Why is ice cream universally popular?
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