Honest question: why would someone of a certain race be less likely to own ID?

I’m not being provocative, I don’t know the answer and the media says it’s a problem but not why.

I need ID to vote, by alcohol, get in to night clubs, collect secure post and so on. I just flash my licence and move on. Why is it not so easy for others?

I have asked here before, lots of people liked my comment but nobody replied.