There isn't a single electronics store in the SF Bay Area where you can drive up, walk down a row of capacitors, and find one that isn't (1) holdover stock from the 1980s or (2) a no-name capacitor brand that will fail to deliver on it's specifications.

And even the stores with 1980s holdover stock or bottom-barrel crapware are going away. People would rather just wait 2-4 days for Amazon or even wait 10 days for Mouser/DK. It's that bad.

I think there's a sweet spot where a brick and mortar store can sell components. In fact I think the potential there is huge. It'll have to do a lot of things exactly right:

1) Knowledgeable, non-snooty staff who can answer a question quickly and effectively. "My daughter is making an LED circuit" "Okay, LED kit is here, buy some roughly 330 ohm resistors here, these LEDs can't handle 3v directly so they need something to take up the overage, thank you, next customer"

2) Sell parts people want. If your warehouse is full of parts made in 1982 that should fill you with existential dread. Scour Amazon and ebay for electronics parts to determine what is popular. Follow maker sites to determine what parts people are using in hobby projects.

3) Resist the urge to sell high-margin items like phones, Remote-control cars, casio keyboards, or to start your own line of personal computers. That's what did Radio Shack in. You can get such things cheaper online, and no one needs a casio keyboard TODAY the way they need a handfull of 470mocrofarad capacitors TODAY.