As Mick mentions in his remark, "to deem fit" is just a little outdated-fashioned but not, I do think, more than enough that you shouldn't learn the way to use the idiom. I would not connect with it "Victorian" English, as it's a phrase that sees typical use even nowadays. https://cat-diet-guidelines-dubai68630.aboutyoublog.com/42972469/an-unbiased-view-of-clean-litter-practices-uae