I outgrew that a looooong time ago, thank goodness.
It seems kids are getting potty trained and outgrow bed-wetting at a much later age these days. I partly blame the diapers. They make them so absorbent now the kid doesn't mind even when they're packing a load.
When I told my mother that she said I had a point because I was potty trained at around two, but my brother was even younger and practically trained himself, and she said that they still only had cloth diapers when my brother was born but then disposable ones became available when I was born about three years later.
Hard to believe that was back in the 70's, it sounds more like the 50's.