To me, this seems like a classical case of treating symptoms instead of root causes. By preventing the birth of meat consumers we reduce the consumption of meat, yet we do not address the root cause of a dysfunctional food system. Focussing on food system change may be less effective in the short-run (at least in this concrete example). In the long-run however, as food choices shift towards plant-based options, animal suffering caused by food consumption will decrease continuously and may ultimately drop to zero. This can only be achieved through systemic change.