I'm not sure I agree
@Hinchhater1442 Induction is no guarantee when baby will come (I believe 2-5 days is most common) and there are tons of reasons you might need or want one and various different methods. They also require much closer monitoring and come with more risks than natural labour (more likely to need interventions/C-section). Most women will labour at home until baby is imminent whereas with induction you could take a bed for days and need 1-2-1 midwife care in labour so it'd be more staff and resource intensive.
I think part of the issue is that we use outdated data for what constitutes a big baby and growth scans are far more prevalent these days. We also have better monitoring and hospitals are targeted to reduce poor fetal outcome meaning they will err on the side of caution. Equally, if a lady does not particularly engage with midwife/pre-natal services they can't just be called in for induction so there would always be an underlying issue.
Induction will be based on clinical need so a baby that's stopped growing or a PPROM will have higher need compared to say, a large baby or an overdue lady where baby is not at risk and can be pushed back.
The hospital will know at any one time the due dates of the ladies registered to have their baby there, medical history etc so they should be able to staff plan using their data systems pretty well in advance.
At my hospital the month I gave birth to my first induction was 33.8% of labours. 48.9% were unassisted vaginal brth, 9.6% assisted, 21.8% ECS and 19.4% planned CS - 380 babies total. I think it's about 20% nationally