No, your sim can get married without moving in. Just be sure to have a high enough relationship with the other sim to propose and get married.
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You can move them to another town, but if you do all connections they had to where ever they lived before will be gone including relationships with friends and family, they will have no memories.
you get them married or dating or best friends and it will come up at your house ask to move in
when they move out, they will enter The Clipboard (the place where the Sims are kept after you've made them but before you move them into a house. From there, you can move them into a new lot to play them.
get on a computer and select move
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Do you have to complete goals? If so, then complete all of them to move on to the next level and move out!
No. Sims can only get married if they are young adults, adults or elders. When i was playing today, my teenage sim met another teenager, and she was married to someone ^^
Build a friendship between the two sims & then eventually it should have "Propose.." "Move In" in that pie bar when you click on another sim.
No
You can't.
on the edit town mode you can merge households. also if your sim is good enough friends with another sim in another household and they are at that sims house at the moment then that other sim can ask you if you would like to move in
Well, the sims can buy there own house (move out on there own), enjoy there romance, and ofcourse if your talking about the sims castaway for the computer then they can have kids and raise them.