There are but they are few and far between.
Large AI resort chains will often have a few properties that offer under 3 childcare.
A travel agent explained to me that IATA has regulations for under-3 childcare. It's hard for most properties to meet those requirements so many give up and just offer it from age 3 onwards.
I remember we went skiing with friends. Their daughter was school-aged but mine was only a year and a half. The mother organizing it said that it really limited her choice, the fact that my son was under age 3.
Club Med or here in France, Pierre Vacance, among others will have a small selection of properties where they have under age 3 facilities. You can probably find them on line but usually there was a chart in their brochures so I could easily look up where we could go. Club Med also has "Baby Welcome" resorts which don't offer any kind of childcare but are equipped with the facilities.
We actually stopped going to Club Med because they used to have a system for buying drinks on site. They they revamped it to make all drinks free but raised their prices. We aren't big drinkers so we felt like we were underwriting other's drinking binges. But decide for yourself.
What some parents on this forum have done is bring along a babysitter. Usually, there is some teenager you know who would love a paid-for vacation, if that can be worked out. That would give you a wider selection of vacation resorts.
Just to mention, you can run into limits with hotel babysitters. Many parents aren't comfortable with the idea but we had good experiences. My problem was availability and was often told it couldn't happen. If you know in advance, it's best to mention specific times as soon as you book.
If you're interested in cruising, there are a few lines/ships that do provide under 3 childcare, especially if you want to go to the Caribbean, less so with other markets. Look at NCL and Royal Caribbean, among others.
Some people were judgemental about our wanting to have some sort of time without the little one. They would say things like "Our family stays together" or whatever. I was single until age 35 and then had three kids in 4 1/2 years. I kind of needed a breather.
There's also the safety element. My daughter fell into a pool when my husband (and sister-in-law) were supposed to be watching her so I had trust issues after that, not to mention never vacationing with them again! If I wasn't watching them, I wanted someone paid whose job was to do so, in a secure area. Vacationing with family might be a solution for others but it was ruled out for us.