One of the biggest pitfalls of games like Animal Crossing (just as an example) is that big game mechanics become locked upon the entering a co-op mode. Will special care be taken to ensure that prominent features such as marriage remain open for those who wish to create a coop-built farm?
Well I do know that for a fact you can still marry, like oath stated, and your co-op partner can actually help you build. This is an early co-op demo but it shows you what you can do with your partner, well not all but you get the idea:
