VHS were dubbed… no need to do region locking.
Throw in the difficulties in buying non-local things in the first place and it simply wasn't a problem, they could market-segment to their hearts content
I suspect the cost of physical distribution and good copying equipment was the key issue until fairly late on in the life cycle of VHS as a common tech. Region locking just wasn't thought of because by the time it might have made significant difference other limitations of tape based media format were readily apparent and new systems were being designed and implemented.
Animated films were usually dubbed, everything else was narrated by one monotone voice.