If God is omnipresent, why would my church tell me not to go places where God is not?

Growing up, I was always taught that God is omnipresent, meaning that he is everywhere and always with us. However, recently, some church members have been warning me to not go to places where God is not. For instance, I love playing ping-pong and I occasionally go to a ping-pong bar to play. Some more conservative church members hate bars and they’ll warn me not to go because “God isn’t there” and I may die or something else bad might happen. I’m not going to this bar to do anything other than play ping-pong. If God is omnipresent, wouldn’t he protect me and be with me?

If God is omnipresent, why would my church tell me not to go places where God is not?
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