We had the option but declined. Seems like a good idea on paper, but upon closer inspection it seemed a bit over hyped. If I remember, there are limitations to the amount of time the cells are potent (it's not indefinite), and only certain categories of diseases and disorders could be addressed, and even then the success rate wasn't all that impressive.
In the end, we opted out. But that was nearly 15 years ago and things might be different now. I encourage you to research it and not feel pressured. One thing I found back then was a lot of "guilt tripping" around what it means to be a "good parent". You'll be made to feel guilty for not buying the latest xyz or enrolling your child in the latest safety/Child-Find services, or feeding it the healthiest foods, etc. Be on guard for that stuff and confidently say No, with no regrets, where appropriate. This is a massive profitable business, like any other. Buyer beware.