All the different family surnames

I find it fascinating to discover all the different surnames on our family tree and sometimes, if I come across a person with one of the more unusual ones, I wonder if we are distantly related ( I don’t say anything!) I was thinking that in the future it will be a lot harder to trace ancestors because many don’t marry and the children have different surnames, sometimes the male one, sometimes the female one. They are rarely baptised now so those records are not there, either. Our generation is lucky because we can often trace ancestors a long, long way back, particularly if you discover a ‘titled’ or famous ancestor. The there’s DNA - so many connections now.