I have already done some research, the links below will help. These are some helpful tips and websites to look, given on some forums when I asked for advice. Brexit or Covid probably would be the best...

THE REGULATIONS CURRENTLY AFFECTING UK AVIATION
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Table of Contents
Introduction    3
Body    3
Conclusion    4
References    5
Introduction
The air transport industries contribute a small segment to the GDP of the UK. However, considering the situation of the past three years owing to the covid-pandemic, it has adversely affected the aviation industries, aircraft manufacturing units, tourist and transportation sector, and professional visitors across global. Hence to comply with these aspects, the government needs to concede with a suitable range of consumer laws that applied to the aviation sector and other businesses sectors that directly and indirectly engage with aviation.
Body
Considering the current situation in terms of the business aspect and economical aspects, that was a occurred due to COVID-19 crises, travel restrictions, and economic crises have resulted in a dramatic drop on demand for aviation (Osunwusi, A., 2020). In the aviation sector, there was a huge economical and strategic aspect for the UK that is dramatically reduced due to COVID-19. Therefore now, it requires systematic solutions and changes pertaining to the current rules, regulations, and procedures for a customer-oriented approach. As revised regulations, the visitors of the UK are concerned and obey rules of public health, safety, and guidelines for international traveling. The government changed the principal regulations like the aspects of wearing masks, using sanitizer, and being ready to take their quarantine for a minimum of 7 days and a maximum of...