I'm still having my doubts about some big services such as BitPay and Coinbase since the NYA. It's seems like they are acting against the community. I know they are supposed to implement SegWit by the end of the month but the question is, what they were doing in the past few months? with the resources they have, they could've done already it, probably in a matter of days. I obviously wasn't expecting them to not implement it at all but delaying on purpose is obvious here IMO, same thing applies for Blockchain.info.
maybe they were waiting for SegWit to be ready before they implement it!
i see a lot of things not yet ready for example there is not yet a universal way of showing the private keys belonging to a SegWit address!
Electrum guys had to invent something for themselves to implement it. it contains an extra version which tells the wallet it belongs to a Bech32 address but you can not find it anywhere else. if you wanted to import this private key in another wallet you would have to take extra scary steps.
just my guess about these businesses though.