Suppose that a topological space $X$ satisfies the following property
(P): "Each uncountable disjoint open family is locally countable",
where a family $\mathcal U$ of subsets of $X$ is called locally countable if each pont of this space has a neighbourhood that intersects at most countably members of $\mathcal U$.
We donot know whether this property have been studied before.
If yes, what this property is called? Any reference/suggestion would be a great help for us.