I was optimistic before to meet, buy and sell to other people in person because we share common interest for Bitcoin. This was like a decade ago and when I was still new to Bitcoin. But realizing that there's a need to be protected from the harmful people that also share the same interest but have a bad intention during meet ups. That's why even if the centralized exchanges don't have better rates, that's what I am choosing to do my business when I am about to sell or buy. It's safer and hassle free, although I'm still leaning forward to meet real good people that share the same interest about Bitcoin but, there's no need to disclose of how much we hold.