Has the number of family businesses declined in recent years?

A small truck passed me today with a commercial name and logo painted on the side: Starkey Bros. It made me realize suddenly that I see far fewer business names of the form “X—— Bros.” or “Y—— & Sons” than I used to.

Is it just my imagination, or are there really fewer “brothers” and “sons” business names these days? And if there are fewer, does that mean a change in business organizations or just a change in names?

Bonus question: Have you ever seen a business name with “and Daughters” in it?