Q: “Can someone still play with LEGO blocks if they are 100 years old?” Yes. LEGO building is to be encouraged for senior citizens who want to retain dexterity in their hands as well as mental agility, so you are never too old to play with LEGO.

No, it is absolutely not illegal to play with LEGOs at age 100, nor is it a violation of any actual safety regulation. The "4–99" age range often seen on LEGO boxes is a marketing guideline and a legacy design choice, not a legal mandate. For decades, the upper limit of "99" was used as a playful way to say that LEGOs are for everyone, though in recent years, the LEGO Group has shifted many of its "Adults Welcome" sets to a simple "18+" label to signify complexity rather than an age cap. Legally, toy manufacturers are required to list a minimum age (like 3+ or 4+) due to choking hazards associated with small parts, but there are no consumer protection laws that forbid centenarians from enjoying building blocks. In fact, many occupational therapists recommend LEGOs for seniors as a way to maintain fine motor skills, hand-eye coordination, and cognitive function. So, if you or someone you know hits 100, you are free to build as many Star Wars Ultimate Collector Series sets as you like without fear of the "LEGO police" knocking on your door. The only real "danger" is the same one faced by children: stepping on a brick in the middle of the night!