Oven needs wiring to a dedicated circuit?

[Harry Bloomfield]

Then why not fitting the 32A one from the start?

Because the oven suggests it needs a 16amp supply.

 

[EFLImpudence]

Well, I guess the protection the oven and its fitted cable need is from short circuit rather than overloading as the oven cannot change its maximum power; so both a 16A or 32A will provide short circuit protection and I might as well fit the proper MCB for the cable from the start

Well done. You are absolutely correct.

 

[EFLImpudence]

Because the oven suggests it needs a 16amp supply.

Requiring a 16A supply is not the same as requiring 16A protection.

 

[SUNRAY]

Well, I guess the protection the oven and its fitted cable need is from short circuit rather than overloading as the oven cannot change its maximum power; so both a 16A or 32A will provide short circuit protection and I might as well fit the proper MCB for the cable from the start

People will tell you the oven cannot change its power, however faults do occur, see:
https://www.diynot.com/diy/threads/resistive-element-ocpd.578158/#post-5055496
for one such example.