Please give me some advice, whether to learn flute or guitar.

Playing guitar will definitely give you calluses, which is normal ~ ~ Xiao and guitar are two relative instruments ~ Generally speaking, Xiao is a soft instrument, and guitar is a hard instrument ~ Guitar will mostly remind you of rock and roll, and people who learn guitar will cultivate your hard character (it is best to listen to rock and roll more and cultivate feelings, which is the most important thing to learn guitar and play music), while Xiao is an instrument.