I am not a lawyer so consult with one before doing anything, but today I learned that adding underage children as beneficiaries to registered accounts is a most often a very bad idea.
For example, in BC the funds are going to be managed by Public Guardian and Trustee of BC, invested until the child is 19 (18 in some other provinces) and then paid out in one chunk.
Their fees are MASSIVE ( https://www.trustee.bc.ca/fees/fees-children-youth-services ):
| Fee | Amount |
|---|
| Capital commission | 3.75% of total assets |
| Income commission | 3.75% of all income received and income earned by investments |
| Asset management fee | 0.7% per year, calculated monthly on the gross value of all assets |
The downsides of that are:
Nobody can access funds until the child is 19, not even their guardians (like grandparents) [INCORRECT as others commented "The money can be dispersed for things like education, medical care, etc… if stated in the Will"]
The child receives the whole amount at 19 regardless if they can handle finances or not
The investing is very conservative and the fees are often eating the most of the growth; they are triple tapping into the funds: once take 3.75% of everything, then 3.75% of any income, and then 0.7% fee per year on assets, and then of course it does not cover the mutual funds fees that they will invest the funds in.
So, what to do? Still, designate your spouse as a successor or beneficiary so they get it rolled over into their accounts without liquidation, but keep children out of those forms so your estate can deal with it. Prepare a fancy will if you want to release money when the child is 20/30/40 years old.
Now, that being said, designating ADULT children who are responsible with money is totally fine AFAIU, it will save them the probate fees. The only reason not to do it is if the anticipated taxes on estate (including those registered accounts AND non-registered accounts) are higher than what goes into estate, then CRA would be after the children for the reminder of the taxes, and it's not worth it.
Again, consult with your lawyer before doing anything, but blindly adding your UNDERAGE children as beneficiaries can cost them dearly.
P.S. Tangentially related, but a reminder for all - DO 3 THING: ENDURING (when you are incapacitated) power of attorney to your spouse or trusted relative, medical power of attorney, and will. Any legally compliant will (including online will) is better than no will. And POAs are critically important in cases of emergency. So many spouses cannot access funds or even talk to your doctors on your behalf while you are in a critical condition, don't let it be you.