Ok sure, there’s limitations. So what percentage of their current deliveries are actually possible with drones? If it’s above 0%, then there’s an opportunity.
Beyond that it’s a finance/ risk/ reward/ regulation issue.
Imagine a van which drives into a suburban housing estate and instead of parking individually at different houses for 5-10 mins each, spends less than 5 mins prepping a set of drones which take off from the roof of the van and return in minutes.
It saves time and fuel. It doesn’t work everywhere, but it doesn’t need to.
In fact it could be the same van. Do deliveries exactly as normal, and use a drone for the last half mile when convenient. It’s not either/or.