Who should keep the Passover?
All circumcised Israelites. It was to be eaten in the home. There was to be no leaven in the house. No manner of work was to be done on the day it was observed. Do not forget that this is all about the kingdom and not The Church. The children of the household were to ask why it was observed and the master of the house recited the story of the exodus from Egypt. The law never made any provisions for any uncircumcised to observe it. See Ex 12:47-49. It was in force till the end of Acts, where The Church began.