Right now, our conservationists are working tirelessly to save wild animals and wild places across four continents and four oceans.
Conjunctions are words used to connect phrases and clauses. Between 25 and 40 months, children begin to use the conjunctions and and because (Owens, 2001) to join phrases and clauses. And is the most frequently used conjunctive form for children in the three- to five-year age range.
No-one likes being called middle aged so it is often 'your age+ another ten years' . But personally, I'd say roughly age 45-60. Words for 'older people' are quite difficult as some of them are seen as offensive in some way (you see how I used 'older people' - that is the UK's PC phrase now for people over 60).