Having a poster child on da wall may or may not be comparably satisfying or enjoyable as having one or more real rug-rats around, depending on your own temperament, physical capabilities, financial situation, etc. On da one hand, just staring at a nice picture won't give you da uniquely-pleasurable experience of actually holding and caring for a warm living breathing pint-sized fellow human, but on da other hand, it will save you da time, effort, expense (especially if said offspring has a bratty/delinquent tendency, in which case extra clothing-store/toy-department purchases or fines/bail-money would be an additional concern), emotional trauma, etc. of raising actual in-da-flesh children.