Filters a 'No-Brainer'?

Untold numbers of microplastic particles are pumped each day into the environment from UK washing machines. The microfibres end up in many locations including marine food chains and the placentae of pregnant women. Cheap filters, capable of removing the vast majority of plastic microfibres shed from synthetic materials, like nylon, can easily be fitted to machines. There is, however, currently no requirement to fit them. Campaigners, Members of the UK Parliament and the Women's Institute all think such filters should be mandatory on washing machines (https://www.theguardian.com/environment/2021/sep/21/washing-machines-filters-microplastic-pollution-microfibres ). This is what is generally termed 'a no-brainer' i.e. something so obvious, it's amazing it isn't already a requirement. It's not as if microplastics have only just been noticed. All the indications suggest that microfibres are really problematic.