That is not true. It’s on a state-by-state basis and only a few states have laws that say ownership is automatically seen as intent to commit a crime.
It’s legal in most states to own lock picks and use them on locks you own.
I also believe most of the same states allow you to use them on any locks with the permission of the owner, but there may be a few that require a locksmith for that, even if you aren’t selling the service.