Aw Emma , it’s your own mom and dad and aren’t you the best to consider them 😊 If they are happy to take him maybe not just see how it goes , especially as
Only part time you are not being selfish and sure grandparents are their to spoil , have a good chance with your parents and tell them how you feel .
Anxious worries have a way of exaggerating themselves .
If you are as caring about your parents I’m sure they will be twice as understanding and not wanting you to worry either x