Is it safe to hook a trailer (like a Burley d'lite) onto a tagalong (like a trek mt. train 201) onto the seat post of an adult bike? I saw two different people doing this in a space of 15 minutes in my town, and it really made me wonder. I have a 5 yo and a 21 month yo and am looking into buying both types of devices, and I never considered that it COULD be safe to hook them together - is this a great idea or a terrible idea? It seems like there should be some issue with weight and stress on the hitch & seatpost, and also balance and steering issues.
BTW, this forum has been a great place for me to search for lots of great info - thank you!