Freakin out! Doing my sons taxes. He's getting back more than he paid in.

Thanks in advance for guidance.  I'll keep it simple.  My son is 24.  He is a Dancer (Backup Dancer for singers / music videos, etc).  He was also a Notary in 2021 doing mobile mortgage signings.  He received three W2's.  #1, income $636 / tax withheld $20.87 .  #2, income $2930 / tax withheld $166.60 .  #3, income $4299.98 / tax withheld $205.20 .   He received two 1099 NEC's.   #1, income $1454 / no tax withheld (this is for a Dance job).  #2, income 1125 / no tax withheld (this is for his Notary Services).

Total W2 income is $7865.  Total tax withheld is $392.67.   Turbo Tax says that his Refund is $1572

I'm just scared that I did something wrong.  I'm a 'by the book' filer.  I don't want to mess with the IRS.  Is this Refund legit?