As an American who discovered good tea 50+ years ago, I also feel that the 'tea' taste' is lost when mixing it with milk. I suppose if one is using cheap tea bags and making it very strong, milk may be the only way to tolerate it.
   Making good tea does take a bit more attention than making the usual coffee... one cannot just plug something in and come back in 15 minutes....and buying **good** tea is the first step. I am opinionated in my belief that tea milled fine enough for tea bags loses something...and they almost never USE top-notch tea for bags. (I have a couple times won bets that I could pick out from 5-6 cups the one made with a teabag.)
I have learned to like and make decent coffee, but there is a wider 'difference' in tea types, and I simply can't afford to buy the most expensive coffees to produce the best....


(I do use 'some' sugar in certain types, but not in Oolong or Jasmine or other light teas..)