Hi, while I was filling the online form for my citizenship applicaiton, I have come across Referee Declaration Forms for both referees. I already have the required information from my both referees which I have entered in the online form. I wanted to ask here that the Referee Form states 'On the back of the applicant’s photograph, please write their full name and date of birth. The photograph should then be glued into the space aside.'
I am filling out an online application. I can ask my referees to sign and date both forms, no drama. But, why do I have to provide them with my physical photo to add above info and then stick it in the box on that form please? Why can't I ask them to sign and date their forms and I could just stick a softcopy of my photo that I worked really hard to get right at home?

I could scan their forms back in once they've done their bit and then I could add them to my supporting documents that I would need to send before attending my biometric.
Could I have an expert opinion please? I don't want to waste my money and time on a No Go Zone. Thanks