We have finally decided & come to an agreement with FILs of where we are going to have the RD. However, they don't want a full open bar, & we (FI & I) do not want a cash bar. So, our RD venue offers drink tickets. They suggested to give two drink tickets to each person. They can use the drink tickets to get whatever they'd like. Once those drink tickets are gone/used, they are responsible for paying for their own alcoholic drinks.
Is this rude? Tacky? Or is it okay?