This is Max from the Shopify Team.
Making a change like this would definitely involve some custom coding or extra power
from the addition of an app.
I'd suggest taking a look at the capabilities of Locksmith for this customization. Locksmith allows you to stop customers from acessing certain products, pages or collections among other things!
If you're looking for something different, consulting with an Expert or posting on the forums Job Board might be good alternatives.
I hope this helps point you in the right direction! If you have any further questions, please feel free to reach out to us again!