Shuman cited COVID-19 as the reason for the decision. He said:

Note this only applies to purchases made on launch day. Retailers will still fulfill pre-orders intended for store pick-up.

However, Shuman recommended consumers contact the retailer to confirm the pick-up and their specific safety measures.

Getting the system is just the first part. If you’re still on the fence about what PS5 launch games to pick up, check out our list of every PS5 launch title to find the one (or five) that’s right for you.

[Source: PlayStation Blog]

No In Store PlayStation 5 Purchases on Launch Day  Sony Says - 43