optional

������sApp says its new AI feature embedded in the messaging service is "entirely optional" - despite the fact it cannot be removed from the app.

In 2018, he was back in the news for a proposal to make neckties optional among workers in the city, citing studies that they diminish blood flow to the brain.

Still, in a late-night session when ease trumps everything, the PAX Plus is a dependable favorite — especially when paired with the optional Puck Press, arguably its most innovative accessory.

Like, I think there’s just a lot a lot optional there because that group’s been together in that group kind of knows what to do.

The chief executive of the Scottish Huntington's Association, Alistair Haw, said specialist services were not an "optional extra" but rather an "absolute necessity".