Portfast in Trunk port

Hi all

I have a doubt in enabling Portfast in trunk port. My customer config has
enabled Portfast in trunk port and i have no idea why we should enable it
on trunk port and hat use it has. Yes Portfast is used for Host connected
ports and it virtually doesn't go thru the STP port states such listening
and learning and thereby goes to forwarding directly and also if there is
any change in port status such as removing the PC or server or any other
device, TCN BPDUs will not be generated. THis is the function of Portfast.
So why would u enable Portfast on Trunk ports.

So if the trunk port goes down, TCN BPDU won't be generated for that
particular trunk port , and so the STP convergence will be affected with
this ?
Any thoughts on this ?

Need experts advice on this ? Why do they do purposefully in real time ..
Any reasons behind it

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