Protecting your ideas is critical. But you have to protect ideas that are proven in some way. That is, in short, ideas that can be implemented or which customers can be persuaded to buy.
Before you have something substantive to prove it, it remains a cheap and quick idea. Pursue it by all means – but aim to make or break the idea quickly. The faster you can discard the good and the bad ideas, the quicker you can get to the great ideas.
Any entrepreneur worth their salt will throw out new ideas on a weekly if not daily basis.
Don’t ask people to sign non-confidentiality forms unless you have already patented your idea. Even then, the chance of someone ...