Still there are many sites which havent adopted segwit.
when the time comes, they will adopt segwit willingly to cut their costs
the reason they're not adopting yet, most likely because of time/resources for re-writing the back end system
... but some exchanges are yet very greedy, they refuse to reduce their transaction fee despite bitcoin transaction fee drop. I think they are too greedy.
true, anything over 10k~20k satoshi is a bit too much and most exchanges wants 50k+ sats
in a normal network traffic like these days, even a 5k satoshi should be more than enough for withdrawal fee
I think they set it high to discourage arbitrage trading
(and make profit at the same time)