It's far simpler to deactivate and drywall over a receptacle than to add a new one in. A moderately handy person can do it themselves.

Having grown up in the 1980s and 1990s house in a 1920s house that got renovated in the 70s, not enough outlets is a big fucking problem unless you want power strips everywhere. And it's especially fun when you discover that your power strip for the one outlet in the room doesn't even have enough outlets, meaning you have to get another power strip and chain it to that power strip.

By the time my mother sold that house in the 2010s, there were a couple of rooms that had like a three-chain-long power strip going into a single outlet.