Looks like
TREZOR is going to be releasing SegWit on their beta wallet pretty soon too.
In general the two hardware wallets have handled all these changes to the BTC network extremely well. The freedom to spend your coins however you want is very important and a responsible hardware company gives their clients these options.
It still looks like it'll take a while before the majority of wallets integrate SegWit support and people use it regularly. Before then the fees might stay high.
Segwit is a forced improvement program. You can't avoid it for long.
No. You can continue to run legacy clients.