I put blue painters tape down as a visual boundary line for my dogs to learn not to cross as puppies.
Only takes a couple weeks of praise training, then the tape is gone.
If I can manage to accidentally drop a knife and cutmy foot or burn myself in the kitchen, they're fucked. I've seen a person carry a stew from stove to counter and trip over their eager pet standing behind them. It went badly for both.
It's easy to teach a cat boundaries. Praise reinforcement is the way If they're curious, let them know their curiosity is only ever rewarded by a treat given in one spot and one spot only. Otherwise put them in hi-vis and hope nothing bad happens for 14 years π€·

