Sunday trading laws are obsolete. It should be up to the retailer if and when they want to open - not the government. It will also help shops compete with online competition - I have, surprisingly frequently, went out to buy a product but found all the shops to be shut - so brought them online.
You may be interested in these active petitions
Article by Tax Payers Alliance -https://www.taxpayersalliance.com/the_case_for_abolishing_sunday_trading_laws
Article 2 -
https://1828uk.com/2019/03/03/sunday-trading-laws-must-go-1/
Article 3 -
https://news.sky.com/story/sky-views-why-its-time-to-shake-up-sunday-trading-laws-11318402