I was dead set against Camila back in the day; but they were in love, whereas Charles and Diana were more of an arranged marriage. I'm sure we all loved Diana, she was a great lady and went through a lot of suffering, especially during the latter stages of her marriage to Charles.
Still Camilla and Charles were in love virtually from the outset, but he put his duty before his love, so I have to forgive him for that. As for Camilla, I still don't like her, but she has given her husband all the support he's needed throughout his life since.
With respect to the question posed, I don't care either way. If it makes Charles happy, then why not.; though I think he should pay for the privilege out of his own earnings from the vast estates he owns.
As others, I'm not a Royalist and would be happy to see the firm cut down in size; that said, they do perform a duty to the nation, and we have in the past been better for it; though I'm not so sure about the future.
I'm sure, sometime in the future; whether it be in our lifetimes, or our future offspring, the monarchy will come to an end as all monarchy's do in the end.
Before anyone says how unpatriotic I am, I'll let you know I served in the army, stood in a Queens parade and have fond memories of serving my country.