There are so many things they could do that would actually save money and make a lot of sense...
For example,
- self service ticket machines / gates at the entrance
Agreed, but they still need manned service desks, although not as many if they used self service machines.
reducing the staff stood at the queue entrances on the rides (the other parks don’t have this... why do Towers need it?)
Mainly because parents will try and get their kids on the rides when they are too short, then complain like mad when they have queued for an hour and been told they cannot go on. The person at the ride entrance is there to check the people entering the queue can actually ride. they are also there to stop people entering a queue line if the ride is shut, or the queueline is too full.