I answered, but had to delete it. I can't think of an answer good enough for this question. Best one of the day. :)
Does she like horses?
what she is IS the ideal height. (Remember that short people have the advantage of thinking they must accomplish more to be noticed.)
Are you talking about a bicycle or a pony?
hmm 4ft 10inches... there is not really an ideal height unless you want to become a catwalk model then it would be 5ft8 and above