I also great up in Texas (30yo now). I was raised to always say sir/ma'am but for most adults that I knew well, we were on a first name basis. Deacons at church were usually on a first name basis (my parents volunteered a lot so I knew them all really well) but the one noticeable exception was the pastor and anyone in a teaching role.
Teachers were always addressed by Mr/Mrs/Ms and this extended into Scouts as well. For anyone I don't know, I tend to just say "sir/ma'am" (employee at the grocery store for example) unless. If the person has a professional title that I know of, I will use the title (Dr. Martin, Professor Lake, etc).
My parents I suppose were very similar. Sir/Ma'am for most interactions, but I don't recall hearing a Mr/Mrs/Ms when they referenced other people in our lives.
Since I've moved to Europe a few years back, I'm trying to follow the local customs more, which at first glance seem very similar (Netherlands). Formal for strangers, informal for basically everyone else. I've tried using the formal with some older neighbours and they always tell me stop immediately!
Teachers were always addressed by Mr/Mrs/Ms and this extended into Scouts as well. For anyone I don't know, I tend to just say "sir/ma'am" (employee at the grocery store for example) unless. If the person has a professional title that I know of, I will use the title (Dr. Martin, Professor Lake, etc).
My parents I suppose were very similar. Sir/Ma'am for most interactions, but I don't recall hearing a Mr/Mrs/Ms when they referenced other people in our lives.
Since I've moved to Europe a few years back, I'm trying to follow the local customs more, which at first glance seem very similar (Netherlands). Formal for strangers, informal for basically everyone else. I've tried using the formal with some older neighbours and they always tell me stop immediately!