If you know enough people in the P2P trading community weather online or in real life, there's no need to be completely beholden to centralized exchanges.
A decentralized exchange can connect you to buyers and sellers instantly, you don't need to physically seek out strangers to trade with.
Is there a booth stand I can buy a hardware wallet?
Be very cautious when buying hardware wallets from retailers and random people at events. They are delicate devices and should be gotten from legitimate sources.
I mean sure you technically can, but it's ok to leave your house and get sunlight. I am the most paranoid person on the planet but i swear you guys are just nerds. There's other things you can do in person that you can't do online like exchange physical things in person and vet someones character. Some of the p2p trading partners I've had a hundred trades with I can just send them $1000 by mistake and they would send it right back.