H4 to F1 visa for h4 kid

My daughter is going to college with h4,we have PD 2015,If she go for F1 from H4 .Is it easy to come back on H4 from F1 if we have PD current before she turn 21.Please Suggest what is good ?

You will have to file F1 to H4 change of status to get back to H4.

Not sure what you mean by ‘easy’ here.

can we do h4 to f1 and f1 to h4 if PD got current before she turn 21?