DH and I are thinking about it. We would not be bringing our toddler, just DS who is 6 weeks old. He would be sleeping in his carseat the whole time and if he needed I would BF in the car. Do you think people would look at us funny? (not that we would leave the car with him anyway.)
We haven't been to the drive ins in a couple years but I seem to remember people bringing little ones. We wouldn't bring DD since it would mess with bedtime and she couldn't handle being up that late but at DS' age, it wouldn't affect his sleep etc.
Re: Would you take LO to drive in movie at this age?
Definitely do it. I don't think people will care, if so, who cares anyways.
It would be a much easier way to see a movie than the theatre with a baby.