Hi Zicks, big welcome to morsbags and great that you and your son are excited! The glue stick just serves to stick it temporarily to hold in place while you sew round. If you just put a dab in the middle of the label the needle doesn’t go on to the glue. Some people just pin it on.
No we don’t turn the ends in as the ribbon shouldn’t fray but trhere’s no reason why you shouldn’t if you want to.
Happy Bagging!