(copied from other comment)
That’s atrocious. In your own property, no one else is going to collect it. That’s different from maing huge pipes and drainage systems over the city, just collecting what would otherwise be on your driveway or patio.
It’s one of those things that sounds dumb at first glance, but actually has a lot of sound reasoning behind it, read up on it more if you’re interested
People take it to the logical extreme by converting large tracts in water catching systems. Not an issue if a few do it but it usually isn’t just a few. It starts depleting aquifers and rivers, causing damage to the ecosystem and communities down the way. Doesn’t even need to be water scarce areas either.
It’s not sanitary, depletes water tables under the earth that naturally filter water as it sinks through the soil, and is not efficient for collection if servicing a large population.
OP is simply spreading pro Hamas propaganda