A couple of weeks ago I participated in a half-century ride along with a middle aged adult who rode it on a single-speed beach cruiser. His 12 year old son had completed a 25 mile ride on the same bike a few weeks earlier. Normally I wouldn't recommend anyone buy a bike from a box store because the components on them are so mediocre and the workmanship and bike setup is often very iffy. In this case, there are few things to go wrong on the bike. It has no shifting mechanism and the single brake is the typical hub brake. Personally I wouldn't ride one of those things if somebody gave it to me for nothing but if it meets your needs, go for it. Anything you will ride is better than not riding at all.

I was going to suggest the Atlanta Craigslist for a better used bike. The problem is that you need to know which brands are worth considering and which are utter crap. Pretty much anything that came from the mass merchandisers isn't worth bothering with. I looked briefly at bikes between $90 and $130 and at least a few that would be worth calling about did pop up but they aren't beach cruisers if that is all you want.