um i had a one i was only asked when i got to the hospital and i thought ok y not they have to learn, she was a lovely lady she kept me calm and was really friendly...but now that i think about it i would have much rathered not have had her there well there but not doing the internals and stuff iykwim, i pretty much had everything done twice so she could learn and for me i didnt like that (maybe if it was my 3rd birth but not my first) i think i would have rathered her been there to watch but not to be involved..but i guess she had to learn!!

i think it is up to u and if u have doubts then maybe not a good idea HTH