What a strange reply to an honest question, directed at Dolly and not you. How bizarre?!? I can only assume that I've somehow offended you on another thread on here, hence your odd reply, disguised as humour. If I have, then no offence was intended I can assure you.
Actually it's my son that is very interested in astronomy - our interest is to nurture his interests/education, as his parents.
Any serious replies to my original question would be gratefully received.