This directive is in line with UAE's COVID-19 precautionary measures

Dubai: Dubai has directed all private sector establishments to start a work-from-home scheme for 80 per cent of their employees on Wednesday.
The Dubai Economy directive is to be followed starting today — Wednesday, March 25 — to Thursday, April 9.
The businesses exempt from the decision have also been announced. Pharmacies, grocery stores, supermarkets and cooperative societies are exempt from the directive according to the Dubai Economy.
In a subsequent post at about 9.50pm, the DED clarified that the 80% work-from-home mandate for all companies exempts the following:
The UAE has reported 333 confirmed cases of coronavirus and 52 recoveries. Schools in the country have adopted e-learning as part of the precautionary measures taken up. All commercial establishments, with essential exemptions, will also close in Dubai starting March 25 until April 8.