If a manufacturers' excise, or a gross sales tax, or a value- added tax, was shifted along the various chains of production and distribution with no loadage and in such a way that the tax element involved in retail prices was uniformly proportional to retail prices for all commodities and services, its price effects would be identical with those of a retail sales tax.
There is such diversity of footwear in Jazz classes (bare feet, half socks, ordinary socks, running shoes and -even!- Jazz shoes) perhaps check ahead with the class teacher or studio what they prefer their Jazz students to wear on their feet. But sneakers will probably be OK for your first few lessons, at least.
For casual and smart-casual offices, sandals are a summer work shoe staple. Heeled or wedge sandals are a great option for style and suitability, but there are various work-appropriate flat sandals as well. Wear them with a knee-length summery dress or a pair of cropped pants. Just donât wear flip-flops to the office!