If your wife's company organizes training, you must let her go. Since the company organizes training, it means that it can definitely be used at work, mainly to improve the working ability and level of employees in the unit, and also to better enable them to play their due level in the next step of work. If you don't let her go, she may not learn new knowledge and skills because she didn't go to training, and she may be eliminated if she doesn't do a good job. For her job and future, you.