Earlier quoted context omitted.
So instead of going to the ground floor of my appartment building, opening my mail box, taking my package and going back home, I have to take a 7 minute walk to the train station, hope that it's open, take my package, and go back home. That's a worse service than what I got before.
I meant, in your apartment's building lobby.
We already have mailboxes for that. Here's an example of what it looks like if you're not familiar: https://cdn-s-www.leprogres.fr/images/A3755E4B-30EC-4378-99A.... They're around 25 cm wide and tall, and 35 cm deep.