Few people in England are interested in St George's Day, as he has no relevance to England. He never visited England and he most definitely did not slay a dragon. St Alban is the first British Christian Martyr and St Alban's Cathedral is the oldest site of continuous Christian worship in Britain.
You may be interested in these active petitions
St George has zero relevance to the English people or England. This is why few people even know the date of St George's Day, let alone celebrate it. St Alban is far more relevant and is considered to be the protomartyr of Great Britain.
The UK is claiming back the use of the Union Flag and it is also time to give us a patron saint who means something to the English. St Alban would give us something to celebrate and help bring England together, which is something that is badly needed right now.