UHT is a bit cheaper and of course, shelf stable. I understand the reason why it is so popular.
Personally, I use both. I usually buy a bottle or two of fresh milk when I go shopping, and I keep a pack of UHT in case I don't have enough fresh milk. This way, I will not run out of milk, and I will not let my fresh milk spoil because I bought too much.
And yes, fresh milk (whole and half-skimmed) can be found in almost any supermarket. AFAIK skimmed milk is almost exclusively UHT, and raw milk is very hard to find but not illegal.
Personally, I use both. I usually buy a bottle or two of fresh milk when I go shopping, and I keep a pack of UHT in case I don't have enough fresh milk. This way, I will not run out of milk, and I will not let my fresh milk spoil because I bought too much.
And yes, fresh milk (whole and half-skimmed) can be found in almost any supermarket. AFAIK skimmed milk is almost exclusively UHT, and raw milk is very hard to find but not illegal.