From a reader:
If you are a Catholic of the Latin Rite in an area where there is a Latin Rite church & an Eastern Rite church, might you attend Mass & receive communion in the Eastern Rite church or must one attend the Latin Rite one?
If a Latin Rite Catholic brings up children regularly in the Eastern Rite church, can such a child, grown up, marry & be ordained in the Eastern Rite?
Can a Latin Rite Catholic join the Eastern Rite, marry & be ordained priest?
If you are Catholic, you can attend Mass or the Divine Liturgy in a Catholic church, fulfill your obligation for Sunday and receive Holy Communion. This can be done in a Catholic church, whether Latin Rite or any of the Easter Catholic Churches with their Rites.
Children of Latin Rite parents belong to the Latin Rite. They would have to change Churches formally.
A Latin Rite Catholic can change, through a process.
You can marry a person of an Eastern Catholic Church even as a Latin Rite Catholic.
If you are asking whether or not you can change Churches, marry and then be ordained, yes, in theory. However, I believe some of the Eastern Churches have restrictions on where married clergy can serve.