This is very uncommon in the US. Most major banks (I'm not aware of any exceptions) charge a fee for each outgoing wire transfer, usually $25-$30. Bank of America, Wells Fargo, Chase, and PNC for just a few examples I'm aware of, plus every credit union that has local branches in my area. Some of those banks even add a second fee at the recipient's side for incoming wire transfer.
They often encourage customers to rely on third party services like Zelle instead for small transfers to friends and family. Many banks' sites/apps can also handle transfers between two accounts that both belong to the same bank for free too.