Your lawyer is the best place to start. If you don’t have a lawyer, there’s not much you can do to enforce a EULA and therefore not much point in making one. Good luck.
I agree with the advice to ask a lawyer, but it’s sensible to be concerned with license agreements even in early-stage ventures that couldn’t enforce them.
By establishing the company as licensor, an agreement might help the founders avoid personal liability if a customer sues. Later on, it may be desirable to show potential acquirers that, from the company’s inception, its customer contracts included terms to confirm ownership of intellectual property, limit liability, satisfy privacy laws, and so on.
A fictitious person (e.g. an LLC or corporation) is how founders avoid personal liability. Your lawyer can explain this. They will also explain that anyone can sue anyone (at least in the US).
If you can’t afford a lawyer, don’t do business that requires one.
By establishing the company as licensor, an agreement might help the founders avoid personal liability if a customer sues. Later on, it may be desirable to show potential acquirers that, from the company’s inception, its customer contracts included terms to confirm ownership of intellectual property, limit liability, satisfy privacy laws, and so on.