// I think people will ignore the law and Parliament will lose authority.//
That's all very well, jourdain, "the people" may well do that. The problem is there are many restrictions still in place that Local Authorities will take absolute delight in enforcing upon businesses. Most notably the hospitality trade is still limited in its capacity and many establishments are struggling to break even with that reduced capacity. "The people" may well ditch their masks in pubs and restaurants but proprietors have an obligation to make their best efforts to see compliance. Once again the LAs will take absolute delight in visiting such places and dishing out penalties where they believe non-compliance is being condoned. A lot of this is out of the hands of the people. Businesses have licences to protect and they have little choice.
The pandemic has been manna from heaven for the Town Hall wallahs. It has given them a fresh "raison d'etre". They've stuck all their signs on the lampposts and their stickers on the pavement; they dumped all their flower pots in the roads to allow "distancing (and crippled the traffic flow into the bargain). They won't want to waste all that effort so what better than assembling teams of people, who usually answer the phone to tell their citizens that they cannot help them with whatever problem they have, to go round shouting "Hands, Face, Space" instead.
These restrictions should have been lifted at the first opportunity. Instead they are being maintained "just in case" and it's disgraceful.