You can use a vintage or antique high chair but it's not recommended with today's safety standards. High chairs from the past were not as regulated, nor were they as monitored for safety. Some did not have safety belts at all and the ones that did were not near easy to use or as safe. If you do choose to use an older high chair, please make sure to stay in the room and within arm's reach of your baby. Finally, please make sure your baby can sit unsupported as most older high chairs did not recline.