Fear is rarely logical.
The best way is for her to join a bee keeping club/society,
Then she can see for herself from inside a bee suit at a distance she chooses there is nothing to fear.
Moving closer each time over a season she may well end up as a bee keeper.
I was not too enamored of the idea but my ex-wife was so she took a
course and got some bees and I ended up as the bee keeper!
I have two colonies now and she none!
One step at a time.
Your other option is to keep them somewhere near your home rather than in it. A neighbors garden? Farmer field? Bit of scrub
land? Bees are adaptable just ensure they have forage within a reasonable are and a source of
water.