A_088 - I believe that the practice of grafting is simply an extremely serious philosophical error, as it violates the natural identity of a living being, and that it has subsequently led to very particular consequences on our planet: highly destructive animal species and transsexuality. I strongly believe that feeling part of oneself as belonging to a sex different from one's own is caused by this type of agricultural practice, as I am perfectly aware that what we do to trees reflects on our psychophysical health. However, while also trying to offer useful and constructive criticism, I would like to suggest a possible solution: if a tree requires another type of plant to function and produce fruit with certain characteristics, then I believe it is sufficient to pollinate those trees with the pollen of the necessary trees. For example, assuming a pear tree has a chestnut rootstock, then it will most likely be sufficient to pollinate the pear tree with chestnut pollen. Furthermore, if it is too difficult to collect pollen from certain trees, then it would be sufficient to plant some of these trees in the crops in question (as is already sometimes done in certain crops), so that pollinating insects then perform the pollination part with the flowers they find nearby. Furthermore, planting flowers near the trees can also be a good way to improve their pollination and consequently the final result. I want to reiterate: plants are not LEGO blocks that can be assembled; they are living beings, so they shouldn't be "mixed." In addition to proper pollination, fertilization also plays an important role in the final result. Furthermore, it must be said that by lacking the plant's natural descendants, all the improvements the plant had made throughout its life cycle are lost, and this could be critical, as any parasites do not stop evolving as happens with grafted plants. The risk could be the complete loss of certain crops due to parasites that have evolved faster than the plants' immune defenses. The same reasoning applies to sterile plants, which should never be used but are continued by multinationals for profit and to sell new plants every year. They also do not evolve with the passing of generations and therefore run the same risk as grafted plants.