When I was a youngster, my dad, a house painter, said the future of painting was lead abatement. In the mid-80s when I started working for him, it was a small sliver of what we were doing. In the early 90s we started getting bid documents that were basically 100% lead abatement.
This certainly is the case in some areas even these days 20+years later, particularly those parts of town that have been lower income for a long time, and are now being renovated. Smart guy to think ahead on that.