I think this might be a bit of a 'generation' thing, as family members already in retirement are usually more cautious about what they do with savings, whereas friends or younger family members are often more open to investing. Investing in property has become more accessible to everyone, and is no longer a way of investing for entrepreneurs only.
I tell everyone I know especially friends and family... I actively mentor and help some close friends as I want them to do well and to see how accessible property investment is to most. Once you have the knowledge you have the power as they say! You don't always need money which is a common mis conception and barrier to entry into this market for most people...
My brother even joked about me going on about "the power of passive income from property" in his best man speech for me when I got married! So yes I talk about it as its my major passion...
How do you handle negative reaction though - some people think everything is a scam and that you are being rash - even if you explain that you have assessed the pros and cons and made an informed decision- it makes it harder to trust yourself when there are negative people around you - but then i suppose there concerns might make you do more due dilligence to back up your choice
Your last point is the exact answer I would have given, although the negative input can sometimes leave you doubting your own opinion you must always back your own personal decision once completing your due diligence.
Other peoples concerns will always make sure you assess any avenues or issues you hadn't considered, I will welcome them willingly however stand by my own decision at the end on of the day.
The negative reactions you mentioned typically come from the low information people. If you give them as much information as you can that this is a legitimate business, and they still doubt you, then they must want to doubt you.
I would just not mention your line of work at all if this is the case.
I would like to tell to my all friends and family members about buying the property. They advice me good and help me as much they can.Investing in property is main concern so you should talk to closers about what do you want to buy and why?