PPE like Mom and Dad (should!) wear is a great thing to bring a little one into the activity: it's educational for them to observe, and good habit-forming to we

PPE like Mom and Dad (should!) wear is a great thing to bring a little one into the activity: it's educational for them to observe, and good habit-forming to wear the appropriate safety glasses, earmuffs, or bike helmet, gloves, or whatever is appropriate. Do let them help you with the hammer, wrench, screwdriver etc. even if the job takes 10x as long as it could. Be careful they don't get too proficient before they learn discipline and their limits, or they'll have your washing machine in parts when you turn your back... But essentially everything that's not inherently social, literary, or artistic is a STEM project for a 3 year old.