I just don't see people paying for someone to pick out fragrance for them. It's very personal and people only like very small percentage of perfumes they try. I personally dislike over 90% of perfumes I try and since this isn't a cheap product that arrives once a month that would mean I'd be paying 10x+ and waiting on average for about a year to find something I like.
Perfumes just seem to be too subjective to leave the selection to somebody else. Good luck though.
People having more than one perfume and changing them according to occasions would find this interesting I guess
Maybe knowing who's choosing the perfumes will give more confidence and credibility
Good luck !