We have had milk cows for about 19 years. I was the primary milker of the family cows in my teen years. My favorite of all the types? Of course, the jersey!
I noticed that when I had to drink store milk, that I quickly gained weight & my stomach hurt badly, like I wanted to die. The stuff tastes like it was overheated & like plastic. It is nothing like raw milk. I have learned since that there is a lot that changes the milk composition from the start, by choice of dairy feed supplements (milk is ruined already right here), all the way through the processing, to the store. I will never drink it again. Raw only is the way to go...and it is certainly financially worth having your own animal. There is so very much you can make with the raw milk that saves money.
As far as naysayers, I just let them be. They will most likely never understand. I know what works. They really don't know what they are missing.
I have known a few people who could not drink the conventional stuff be able to drink raw with no issues.
As far as colostrum, some cultures eat it as a pudding. We tried the stuff as is and tried the pudding. It is very powerful, both medicinally & in flavor. It has the worst flavor in our opinion. BUT it is regularly used to save calves that lost their mother's, and we have seen it extend a dying dog's life (from totally down & almost limp to running around), kittens who would have died within hours to the pudgiest, strong little furballs. The egg and other things we tried didn't match the colostrum's power. It is certainly a miracle-laden superfood.
If I had to use it for myself, I don't know if I could bear to taste it...but it makes me wonder what aches & pains might disappear if I could.