People use these apps for convenience, so that they can sell on their own terms. You are asking the sellers to travel to a specific Credit Union/Bank or a police station that might be inconvenient for them.
If I am selling something locally, for an in-person transaction, I refuse to travel even 1/4mile from my chosen location. There is no guarantee that the buyer will actually purchase the item, and if someone wants it bad enough, they will comply with my terms.
How you wish to buy on your "terms" is your prerogative. It is the same for the seller. Just find a seller that agrees with your terms. BTW, recommendations are just suggestions and not requirements.
You asked a question, and I answered it from a seller's perspective.
HI @Sheyroc welcome to the forums,,,,,,,,,,,,,,,,,always do what you are comfortable with ,,,better to be safe than sorry.,,,,,,,,would love to hear your imput on other topics here in the forums also,