When children's permanent teeth come in substantially later than average, it is called delayed tooth eruption. In Factors Influencing Permanent Teeth Eruption, Ruta Almonaitiene, et al. argue that delayed tooth eruption does not normally indicate a medical problem. Instead, numerous sociological, lifestyle and genetic factors affect when a child's permanent teeth arrive.
When you factor in the residual values the vinyl fence will cost you about $168.00 per year while the western red cedar picket fence will cost you about $534.00 a year.
HD T-posts cost $4 each, 12 1/2 ga barbwire $40 a roll. If you put T-posts every 13 ft and build a 5 strand barb wire fence you're talking about $600 a quarter not counting brace posts, gates or labor. Had several pastures refenced that were over grown with trees; lot of chain saw work. Total cost including labor runs about $5000 per 40 acre pasture.