Catching up from the pandemic is probably one reason.
Difficulty accessing other services is a big one I think.
Last week, my son complained of ear pain, so I suspected he had an ear infection. Rang the local walk in centre to check arrangements only to be told it closed last March and isn't reopening
This is in a large town!
Phoned GP 7day access. Told no appointments until Tuesday (this was on Saturday!). Couldn't wait that long.
Phoned 111, they said they would get an out of hours GP to ring. Waited from 10am until 7pm for a call back. Telephone consultation only but we managed and were prescribed an antibiotic spray.
Although not right, I can perfectly see why people become frustrated and head to A&E.