I had 1 both sides match - my son, then a few weeks ago it jumped to 16 both side matches. 1 is 4 / 6 cousin the rest 5 / 8 cousins.
Now my parents came from different parts of the country although in my mother's tree there are a number of illegitimate births and who the fathers were is anyone's guess, but I do wonder if they are correct, oh and the few with trees online come from completely different parts of the country.