Bring people to an tattoo appointment

This Saturday I will be getting my first tattoo on my 18th birthday and I originally wanted to bring just my dad for I could have someone there with me. But now my mom, brother, friend and grandma all also want to come along. I’ve told my mom that they probably won’t be allowed into the room, but they might be able to sit in the lobby. Would that be OK for them to sit there or would the tattoo shop not want them to.

Edit: I called the shop and they told me I could have 1-2 people in the room but it was fine for my family to be in the lobby. I also feel like I should say I don’t want them all to come.

Edit 2: I’m just going to go alone :)