17-20% of Finnish population is lactose intolerant, but we consume a lot of dairy so that has led us to make low lactose and lactose-free products. "Average Finn consumes nearly 140 litres of milk a year" according to this readworthy old article from YLE: https://yle.fi/a/3-5315095

And Jainzar is correct, easier to order and serve just lactose-free milk than to also order honest, regular milk. Oh, EU wants me to say lactose-free "milk drink", but I don't wanna.