Mother in law is used to store chicken, which tastes like flavorless meat mush, so roasters are too chewy for her, even though the texture is similar to steak and she likes steak.... Lol
Pressure cook them until the meat easily pulls apart and is tender and not chewy. I have an instant pot. The meat that way is good for soups and stews. If you butcher past 4 months you have to pressure cook them or slow cook all day to get it tender.