Hello! My kid turns 6 and my nephew 8 next month/year. Their birthday are only one day apart so we used to celebrate 2 years togheter with the kids but i then realize its unnecessary and waste of money for people i don’t even hang with and arent close of mines or my daughter. My sister always invite her closest friends so it ends up being about 6-7 people from her side that i have to contribute for food (like hot dogs, waffles, pizza) and sodas and decorations (no theme party only colour party since her kid would hate to have peppa pig when he only would want minecraft theme.. by this i mean both theme decorations. And none of them even brings my kid or her kid a gift just one showed up with a gift for both and 2 of them for her kid. Like really? On a kids birthday? So im not fan of these joint birthday parties. My parents and my husband have rather tought about celebrating her birtdhay at her fav restaurant. Just the family and no friends i dont even invite my own friends to her birthday. My sis is gladly invited to join but i told her that i won’t do join’t birtdhay next month, or upcoming years, but she can gladly invite us and make it for her kid as his birtdhay instead and we bring a gift. also i don’t even get paid then so i rather spare some money for the restaurant than spend it on people i don’t even care about again. It would have been more cozy if it only was family and not bunch of other people. But she is very on that she wants them there to celebrate so ye..