Bicycle recommendation needed

Department store bikes, particularly single speed non suspension models, are fine for light use kids toys that will be replaced frequently (disposable). I wouldn't trust them for more adventurous older kids though. Their bikes are sub par at best and dangerous at worst.

Adults should only use toy bikes for the most infrequent casual use (garage ornaments). A large LBS will have lots of entry level bikes in the sub $500 range (sub $300 for sales/closeouts) that offer far better quality, comfort, reliability, and service. Paying a bit more up front will give more enjoyment and value in the long run.