As the bridesmaid dresses, flower girls' dresses will also be a large amount to pay for. Should be whose responsibility to pay for the flower girls' dresses?
Usually, child attendants’ parents purchase their clothes, however, the bride and groom will sometimes buy a cheap flower girl dress (or perhaps a ring bearer’s adorable little suit) as a gift. Ask the newlyweds in plain terms, to ensure that there are no misunderstandings. If they’re receptive, you may split it, or, you purchase a dress, and they purchase hats, shoes, etc. Just remember that, like bridesmaids and groomsmen, agreeing to stay at the wedding generally means you’re prepared to purchase a dress-up costume. So, we say go for any multipurpose gown (the marriage, kids' birthday parties, holidays, etc.)
Usually, it's not a big deal from the inexpensive flower girl dresses, whoever to pay for.