Check to see if there is a power differential here.
Are you an established adult with a Real Job and a nice apartment while she is struggling to figure out how to get out from under the thumb of her controlling family? Or is she happily making her own way in the world as a small farmer or boat salesperson or something while you have been futzing around painting skateboards and playing in a minor punk band?
Older people dating younger people can be wrong because it is easy for the older person to have too much power in the relationship. If you have something she really wants or needs that you can provide or withdraw at will or as a condition of the relationship, you should not date.