Some poskim went as far as to call it a "stupid practice" without basis. Others, including Rav Moshe Feinstein did not advocate abandoning the custom, but he certainly opposed the tendency to expand the list of forbidden kitniyot (see Igrot Moshe, Orah Hayyim 3. 63).
In light of the gathering of Jews of all ethnic groups back in the land of Israel, Masorti Jews, the Conservative movement in Israel, hold that all Jews living in Israel may safely abandon the minhag of refraining from kitniyot.
For example while there is a prohibition against owning chametz on Passover, no such prohibition applies to kitniyot. Similarly, while someone would not be permitted to eat chametz on Passover unless his life were in danger, the prohibition of kitniyot is not so strict. People who might be permitted to eat kitniyot include infirm people and pregnant vegetarians. Such dispensations are far more common in Israel where there is a large Sephardi population.
Nevertheless, aside from a small group of his followers, the vast majority of Ashkenazim in Israel disregard this ruling and still refrain from eating kitniyot on Passover.
Source: Wikipedia > Kitniyot
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