it comes across as a little uncomfortable, to think of a single man of career age living at home, sleeping in his childhood bedroom, and so on, but there is nothing patently "wrong" with it, and it is certainly not sinful.

I think you misunderstand my post. I was referring to the OP calling mothers what I thought to be rather a disrespectful term for a mother. Like as if one of your daughters would refer to you as “the old man”.

I am actually recommending the video. Very typical, very Italian and very thought provoking.

Porn plays a huge rule here.
These adult children are not marrying real women because they think porn can satisfy their desire to procreate.

In Italy, it is common for young people---men and women---to live at home up to their 30s or 40s because there is little choice.  These mammoni---I think are not normal and in the video the man even says it is something even Italians look down on.  The video is not recent either.

It is very difficult to get a job in Italy unless one knows someone in a company to get you in.  The men in the video had good jobs and even their own house. Why aren't they living there?  Again, not normal.  In Italy, many jobs are by contract and sometimes one is not even paid at all.  How can young people afford rent, food, etc. if they aren't even getting paid?  Of course, no banks would give them a loan either.

For example, one can get a 6 month contract but they might not even pay you those first 6 months.  After 6 months, the job is over.  It might be renewed for another 6 months or not.  Then, one looks for another contract.  The pay if low, if they do pay.  By some loop-hole, one can work for a company for ten years by having a 6 month contract renewed several times.  What does a temporary contract mean? One is basically a temp--no pension, no holidays, no sick days or overtime.  You probably have to work 12 hours a day every day.  The 6 month contract is meant to be for a ''special project'' but is easily abused.  Some workers even sue to make the employer give them a regular contract like full-time position with benefits but it's up to a judge.

Young people also attend university longer either they do a 5 year degree or many can take as long as 10 years to finish.

Would you like to know what happened to a son who was an only child born to parents who divorced when that child was only 18 months old and who had a very poor religious upbringing (and who also had no children his own age in his own neighborhood to relate to) but had a mother who was the only person in the entire world who truly loved him and he her? That son was not effeminate. That son was me and I am not ashamed in the least to say I am a mama's boy.

By necessity, I became the biggest mama's boy you've ever seen and, in a family and neighborhood with no one his own age to relate to and, thus, very awkward in school, tried my hardest to be happy and content and do the best I could. I was never a discipline problem in school, got good grades, and always stood up for myself (although that was easy being part Calabrese). I only had my mother and what I thought was faith in the "true Church". Then I found out that my so-called "true church" was apparently "counterfeit Catholicism" and, almost broken and suffering a crisis of faith, finally found the truth and the faith in Traditional Catholicism.

I know I will never fit the Traditional Catholic profile (e.g. coming from a large, un-divided nuclear family and growing up with a strong faith) but I joined here anyway trying to connect with some people whom I think share what I believe to be the truth.

You're right that one doesn't need to be a mama's boy to love his mother properly, but necessity often creates what some may call (as in my situation) "being inordinately attached to his mother." And this doesn't necessarily lead to effeminacy in the son or the impossibility to attract a good potential wife.

I hope people understand.