The reason behind this is largely due to the start of an extensive advertisement for mizuko kuyo by the temples which were in financial troubles as a result of the downfall of parishioner system and have arranged tie-ups with large grave stone companies.
その背景には、檀家制度が破綻し経営が苦しくなった多くの寺院が大手墓石業者とタイアップし水子供養を大々的に宣伝し始めたことが大きく影響している。