Yes, it is so hard. I am learning Hindi and I can't even hear the difference between several of the consonants, making it very difficult to measure how well I'm pronouncing them. My Chicago friends can't hear the difference when I say Kyle and Karl, so can't teach themselves to imitate it. And even if they could, changing pronunciation habits takes a lot of attention to the way you speak, which takes effort, which is basically the definition of hard. Its nice that its easy for you, but you should try thinking of it as a skill you have rather than sound like you think everyone else is just lazy.

Different English accents have a massive variety of vowel and consonant sounds, and usually one can find a "difficult" vowel sound in some English accent. As a counter-example, in my experience Spanish accents have very little vowel sound variation.

Perhaps learning how to mimic accents of people from different regions (Irish, Jordie, Scottish, Alabama, BBC etc etc) of your own mother tongue gives you opportunity to learn how to hear and say different vowels and consonants from another language. Or practice the accent off non-native speakers e.g. a French accent for a Parisian speaking English.

I didn't mean to say that everyone else is lazy - I just thought that having a native accent wasn't a priority for most people. People can usually make themselves understood perfectly as long as their accent isn't too deviant, and having an accent has its own charm :)

I had a Danish friend at University and she asked me how good her English was. I told her it was perfect, but she would never be taken for someone British as there was no sense of "place" or "class" with her accent.

You can normally make assumptions about someone's place or class within a few words or phrases in the UK

EG "fillum" for "film" for people from the North East, "supper" instead of "dinner" for middle/upper class people.

> "what is it like to have no accent?"

This might be better phrased as a "native accent" for the region you're in. It's another way of saying that others can't pick out anything in the way you speak that identifies you as from somewhere else.