If your child wants to occasionally use their bean bag chair instead of a traditional chair, there’s no harm in that. However, it’s all about moderation, as too much time in a bean bag may cause back pain due to the lack of back support.  While there are bean bags on the market that provide back support, many don’t, especially for the upper back. It all depends on the chair your child has. For healthy back support, your child should use a traditional chair instead of a bean bag most of the time. This will promote good posture, which leads to a decrease in body aches and pains, strain on the spine, and more.