Is it legal for a bartender to serve free drinks?

It depends on the laws of the jurisdiction in which the bartender is working. In some jurisdictions, it is illegal to serve free drinks, while in others, it is legal under certain circumstances. For example, in some jurisdictions, it is legal to serve free drinks to certain individuals, such as customers who are celebrating their birthday or anniversary. Additionally, in some jurisdictions, it is legal to serve free drinks during happy hour or other promotional events.

In general, it is advisable to check the laws of the jurisdiction in which the bartender is working to determine whether it is legal to serve free drinks.