The situation you have described is indeed a challenging one, where parents are making significant financial sacrifices in the hopes of securing a better future for their children. The idea of children being seen as investments and having the responsibility to take care of their parents in the future can create immense pressure on both parents and children.

Setting limits on the amount parents can invest in their children's education is a complex issue that depends on various factors such as financial situation, cultural beliefs, and future expectations. However, it is essential for parents to consider practical financial planning and not jeopardize their own financial well-being in the process of investing in their children's education.

For me I think  finding a balance between investing in children's education and maintaining financial stability is crucial. It's essential for parents to prioritize their well-being and financial security while supporting their children's educational pursuits.