Are you saying you're in the U.S. and you're asking if cannabis oil is legal in the U.S.? Cannabis is a broad term for a variety of plants. Hemp, a type of cannabis, is legal on the federal level if the products made from it have less than .3 % THC, the psychoactive substance in cannabis. CBD, another cannabinoid found in the cannabis plant is non-psychoactive.
On the state level in the U.S., legality depends on the state. A growing number of states have legalized cannabis aka "marijuana" recreationally and otherwise.
I don't have an opinion on whether parents should experiment with giving their young children CBD oil. I do know there is an FDA approved version of CBD oil that is approved and prescribed for childhood epilepsy and from my understanding is found to be effective. Giving children cannabis oil that has THC. That seems potentially problematic to me because the amount of THC can affect people differently. I personally don't think it would be a good thing to give a young child an amount of THC that resulted in them feeling "high", "baked", etc. I would consider that over-medicated in the same way I child could be overly-sedated from psych meds. I would find that sad in both cases.
As far as the brand I take, it's a locally made oil derived from organically grown hemp in my region and sold at a local CBD store. The cost if I recall correctly is $70 per 1 ounce bottle. I find that to be expensive and as such have questioned whether or not I want to continue incorporating it into my daily regimen.
Now I can speak about my experiences as an autistic adult (diagnosed) for whatever that's worth:
I've tried CBD oil that was THC free and it did absolutely nothing for me. I tried it daily for over 30 days. I've since learned that CBD without at least a trace amount of THC doesn't bind with the human body's own natural cannabinoid receptors. Personally I found it worthless to the point that I even question its true efficacy for people.
CBD oil with trace amounts of THC (aka "Full Spectrum CBD oil"): I've been taking this type of oil for around 9 months. I don't mind the taste (sublingual) and I enjoy the smell of the type I take because it's very reminiscent of some of the marijuana I used to get/smoke decades ago when I used to smoke pot. The type of oil I take is around 88mg of CBD and around 2mg of Delta 9 THC per 50ml. I take 50ml in the morning and 50ml in the evening. Does it help? I don't think it's placebo effect (ie my imagination) that I feel a noticeable (not dramatic) reduction in overall anxiety. I do know also for a fact that a surprising effect is a near complete elimination of truly random and unassociated thoughts that have plagued me my whole life also having ADHD (diagnosed). It's definitely not habit forming for me and totally non-psychoactive at that dosage level
strong delta 8 gummies. I also have not had a desire to push the limits by taking a lot more at a time and "get high" from it. Could you get high from it? The product comes in a 1 oz bottle with a dropper. There is around 60mg of THC in the entire bottle. I would never have or leave the bottle around children because 10mg THC or higher, certainly the 60mg in the entire bottle would make most people feel very high. I do wonder if the positive effects I feel at the very small non-psychoactive dosage is really from the THC rather than the CBD. To that end, my prediction is that when more states legalize recreational cannabis, the demand for straight CBD products will wane and "Delta 8" products currently legal will likely have no demand any longer.
As an adult, I do find, as I've seen some others here comment about as well, that consuming an "edible" on occasion is therapeutic for me. Cannabis has always helped my mind relax better than anything else I personally have ever tried or experienced in my life. It's as though consuming an edible in the evening once or twice a week "resets my clock" in a good way. I personally would not give my minor children edibles as a therapy or otherwise because they do have a mildly intoxicating effect with as low as 5mg Delta 9 THC.
With all of that said, I don't advocate or recommend that people, fellow autistics try cannabis. I don't say this as some sort of legal disclaimer, I say it because I believe that kind of thing is an entirely personal journey. My experiences as detailed above may not be the same for everyone.