Yes, younger generations are much more accepting. I'm still waiting to hear negative remarks from anyone in my age that I came out to. It doesn't bother them, they totally respect it, they don't even comment on it like if it was something odd or strange, they treat it with total normality.
Problems come from family, specially those who are 40+ or 50+ years old.
So definitely, younger generations are more accepting, but my experience comes from Spanish, French and German people, so it depends on country. Theres much more freedom of thought in Europe than anywhere else on Earth.
Younger generations from other countries outside Europe would react different, despite being young, because they are still being brainwashed in their respective societal dogmas, as much as the generations in the 50+ age range from Europe have been, so they would be equal in that ground. This will change however...
Not that Europeans are not being currently brainwashed, they are, but in a more subtle way that permits more freedom of thought on these kind of issues.
