lf your DD wants to learn piano and it isn't a strain on your family budget then I don't think she should have to quit against her will but do keep an eye on the gap between her playing skills and reading level. Some kids eventually fill the gap and do well but others quit out of frustration. This is why DD's first piano teacher starts even her 3-year old students reading from day one, no exceptions. Her current teacher doesn't believe in that so opinions differ on this widely and passionately. Some people say it's just like language. You learn to talk before you read and you can wait until age 8 before you introduce reading but that didn't work for me.
There is so much to music education beyond traditional piano lessons. DD used to say she prefers her string instrument over piano because she only had to deal with one clef at a time. Flute might be something worth considering.
