I've been into similar situations in the past and my experience is that although initially you can be slightly out of focus, you will enjoy your additional time with family and probably will use part of that time to have a bigger view of what you can do with all your experience to redefine your career.
Seven years may not seem a lot but there are plenty of online opportunities in the market for experienced professionals. Especially in the blockchain business. I can give you some links if you need to.
Big changes are usually new opportunity doors. Hope this is also true for you.
Did you find that you were able to reevaluate what was important to you?
I am not sure I am technical enough for blockchain dev work though!
I basically had the time to reevaluate life goals and that offered me new family and career options I had not thought about before.
The thing with blockchain is that many new projects are growing and they need more and more functions covered. Having professional expertise in an area and basic knowledge of the technology gives you an advantage against professionals who have never interacted in the field.