drunk girls asking for lifts

So my boyfriend and I have been arguing over an issue and I thought I would get other peoples opinions. my boyfriend lives and hour away from me and in between us is a town that we both know alot of people in and in this town are a group of girls about 3 or 4 who always ask him for lifts and every Saturday night when they drink they ask him to drive them to maccas then out to the pubs. I am not okay with this and I have told him so just because I dont feel comfortable with him driving around a car full of drunk girls dressed like sluts that I dont even know. is this normal? am I over reacting?