Most of the worldly goods are owned jointly
By the husband and wife or as a beneficiary.
Also there is a 35 year old son.

Is there a catch phrase that would cover all assets?
Or must one itemizing every single items. Bank accounts,
Car, House, Silverware, etc.
Moreover the son should be mentioned in the will, in case
His mother and father were to proceed him in death.
What is your opinion

Which state or country?

Florida USA United States

It is easier and best just to hire a professional and be sure everything is covered.

Everything you want to have happen, needs to be listed.. what happens, when each dies first, if they die together, and so on.

Requirements for a Valid Last Will and Testament in Florida | David J. Shestokas (http://www.shestokas.com/general-law/requirements-for-a-valid-last-will-and-testament-in-florida/)

Top Five Mistakes in Florida Wills | Statewide Probate (http://statewideprobate.com/blog/comments/top-five-mistakes-in-florida-wills/)

https://www.rocketlawyer.com/sem/Complete-Will.rl?id=4&utm_source=103&utm_medium=cpc&try=1&v=3&state=Florida&utm_account=RL-Docs-Search-Text-GDN&utm_campaign=Alpha-Personal-Search-Geo-Modified&utm_adgroup=(4)wills-in-florida(personal)&utm_term=wills%20in%20florida&pkw=wills%20in%20florida&mkwid=sIKyJvA3n_dc&pcrid=46226311385&pmt=e&plc=&gclid=CKW7-PSbwb8CFUdcfgod0QQAEA

Thank you chuck. The will is basic type.Family does not have
many assets. Will check with probate attorney

Attorney wants $450.00 to do a simple will. An offshoot of this question. When the will
Is witnessed , shouldn't a notary public be presence to be a at-testator to the will?
A neighbor did a will at home, it was witnessed, but notarized a few dates later?
Is that legal?

Notarization simply means the signatures were verified. If the witness showed up at the notary, produced ID and attested to the fact they signed it, then the notarization is legal.

Thank you. I guess it would be simpler if the notary, witnesses and the testator were all together.

Not only simpler but the only way a notary in my state will notarize the document (if it is a document that requires notarization).
Not all states require wills to be notarized. See Self-Proof of Will on sites such as this one- Chapter 732 Section 503 - 2012 Florida Statutes - The Florida Senate (http://www.flsenate.gov/Laws/Statutes/2012/732.503)

Excerpt: "732.503 Self-proof of will.—(1) A will or codicil executed in conformity with s. 732.502 (http://www.flsenate.gov/Laws/Statutes/2012/732.502) may be made self-proved at the time of its execution or at any subsequent date by the acknowledgment of it by the testator and the affidavits of the witnesses, made before an officer authorized to administer oaths and evidenced by the officer's certificate attached to or following the will, ... "

If it is indeed that basic, you can use Quicken Willmaker, $25.00 at Costco. I used this with my mother, very simple will, passed probate with no problems. Make sure you understand that any more complex issues should be handled through an attorney.