Contracts are for clarity

If you value the relationship you have with a person or the relationship you're trying to build then you both should want a contract.  Before you commence with work, you should at least write an email or text outlining what you think is expected of you and what the other party will do in return.  Contracts don't have to be complicated and use big words, they just need to be clear for all partied involved.

You see many times people could be using the same words, but interpreting different things.  So take a little time up front and be clear with one another and write out what is expected, read it, make a copy for each party that has an obligation or expectation and everyone sign and date it and make sure you get your copy.

Contracts have nothing to do with trust.  If you can't trust a person/company then what makes you think they will honor a piece of paper?  Contracts are only as good as the parties signing them.  Yes, you can sue for breach of contract, BUT getting your judgment after winning is an entirely different matter.

You can win a lawsuit, but getting your money starts another process if that party doesn't pay.

Remember CONTRACTS ARE FOR CLARITY!