Why do more people not use credit unions?

ADIRONDACK TC 7 ALLIANCE Bank CENT TX 6 BANK FIRST National Association 3 Bank of Versailles 10 Bank of Wolcott 5 BCB Community Bank 15 BURKE & HERBERT B&TC 5 Elderton State Bank 10 Finance Factor 31 First Farmers & Merchants National Bank 2 FIRST INDEPENDENCE Bank 5 FIRST MW Bank OF THE OZARKS 14 First National Bank of East Arkansas 5 Grant County State Bank 6 Lakeside Bank of Salina 4 Midwest Independent BankersBank 10 Security State Bank of Warroad 3 SQUARE FS 26 SYNERGY Bank 14 TRUXTON TC 17