YES-NO.
I know in some places, like Wisconsin, you can drink as a kid if your parents are with you. That is a pretty stupid law.
My advice is to avoid the bars as much as possible It may seem fun now, but it will cost you in the end.. Then again, what do I know. Just another dumb arrrse old guy with life experience. Nothing that should concern an 18 year old that has life already figured out.
