I know many well-adjusted adult witnesses, but I think they are in the minority. The “witness-way” of focusing short-term because god is going to fix everything soon is very damaging. It distorts the cost/benefit analyses that one uses to make long term decisions like buying a home, getting an education, working in a community and with environmental matters. Why make such investments if the end is just around the corner?
For similar reasons, witnesses are sometimes not the best business owners, as any successful business must think long term and cultivate customer relationships that last a lifetime. The teachings of the WTS do not encourage such a view, rather employment or a business is to make money in the fewest hours possible so that one can pursue spiritual goals.
I believe the consequences of short-term thinking are severe and harm the emotional and financial health of witnesses. Some are able to rise above it by deciding, some without not even realizing it, that they do not believe the end is coming and build - family, relationships, businesses - with a lifetime in view. The consequences of WTS teaching are probably unintended, but very real.
Zarco